[INFO] fetching crate kg-io 0.1.1...
[INFO] testing kg-io-0.1.1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate kg-io 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate kg-io 0.1.1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kg-io 0.1.1
[INFO] finished tweaking crates.io crate kg-io 0.1.1
[INFO] tweaked toml for crates.io crate kg-io 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12de697381afce73899426bba497118cddd87be45ae3977c6082b77f2fd51e16
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "12de697381afce73899426bba497118cddd87be45ae3977c6082b77f2fd51e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12de697381afce73899426bba497118cddd87be45ae3977c6082b77f2fd51e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12de697381afce73899426bba497118cddd87be45ae3977c6082b77f2fd51e16", kill_on_drop: false }`
[INFO] [stdout] 12de697381afce73899426bba497118cddd87be45ae3977c6082b77f2fd51e16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe30d347f992269cde17d935e69801acb123b2a9ac4acff94b22582598cc3cf1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fe30d347f992269cde17d935e69801acb123b2a9ac4acff94b22582598cc3cf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling addr2line v0.15.2
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling object v0.25.2
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling kg-utils v0.2.4
[INFO] [stderr]    Compiling kg-display v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling synstructure v0.11.0
[INFO] [stderr]    Compiling kg-display-derive v0.1.1
[INFO] [stderr]    Compiling kg-diag v0.1.1
[INFO] [stderr]    Compiling kg-io v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:58:47
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:60:55
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:92:28
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn scan(&mut self, f: &Fn(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:105:36
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn scan_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:118:34
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn skip_until(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:129:42
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn skip_until_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:140:34
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn skip_while(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:151:42
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn skip_while_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:399:47
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:412:55
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "fe30d347f992269cde17d935e69801acb123b2a9ac4acff94b22582598cc3cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe30d347f992269cde17d935e69801acb123b2a9ac4acff94b22582598cc3cf1", kill_on_drop: false }`
[INFO] [stdout] fe30d347f992269cde17d935e69801acb123b2a9ac4acff94b22582598cc3cf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bef7486111ac7924772bc816fd17051da0d062a404b5aee90b757aa954ae77f2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bef7486111ac7924772bc816fd17051da0d062a404b5aee90b757aa954ae77f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:58:47
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:60:55
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:92:28
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn scan(&mut self, f: &Fn(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:105:36
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn scan_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:118:34
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn skip_until(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:129:42
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn skip_until_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:140:34
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn skip_while(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:151:42
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn skip_while_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:399:47
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:412:55
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling kg-io v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:58:47
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:60:55
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:92:28
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn scan(&mut self, f: &Fn(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:105:36
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn scan_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:118:34
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn skip_until(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:129:42
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn skip_until_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:140:34
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn skip_while(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:151:42
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn skip_while_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:399:47
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:412:55
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.25s
[INFO] running `Command { std: "docker" "inspect" "bef7486111ac7924772bc816fd17051da0d062a404b5aee90b757aa954ae77f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bef7486111ac7924772bc816fd17051da0d062a404b5aee90b757aa954ae77f2", kill_on_drop: false }`
[INFO] [stdout] bef7486111ac7924772bc816fd17051da0d062a404b5aee90b757aa954ae77f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4dd1f8cf0ea78b4172d0b363a273601ff083d72916b3faa9087201b97e84f0be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4dd1f8cf0ea78b4172d0b363a273601ff083d72916b3faa9087201b97e84f0be", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(specialization)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:58:47
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:60:55
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:92:28
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn scan(&mut self, f: &Fn(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:105:36
[INFO] [stderr]     |
[INFO] [stderr] 105 |     fn scan_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:118:34
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn skip_until(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:129:42
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn skip_until_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:140:34
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn skip_while(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:151:42
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn skip_while_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:399:47
[INFO] [stderr]     |
[INFO] [stderr] 399 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:412:55
[INFO] [stderr]     |
[INFO] [stderr] 412 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(specialization)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:58:47
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:60:55
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool>;
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:92:28
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn scan(&mut self, f: &Fn(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:105:36
[INFO] [stderr]     |
[INFO] [stderr] 105 |     fn scan_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<Cow<str>> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:118:34
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn skip_until(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:129:42
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn skip_until_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:140:34
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn skip_while(&mut self, f: &Fn(char) -> bool) -> ParseResult<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:151:42
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn skip_while_mut(&mut self, f: &mut FnMut(char) -> bool) -> ParseResult<()> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(char) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:399:47
[INFO] [stderr]     |
[INFO] [stderr] 399 |     fn match_str_term(&mut self, s: &str, f: &Fn(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<char>) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:412:55
[INFO] [stderr]     |
[INFO] [stderr] 412 |     fn match_str_term_mut(&mut self, s: &str, f: &mut FnMut(Option<char>) -> bool) -> ParseResult<bool> {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Option<char>) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kg_io-c48cc1dd074d6617)
[INFO] [stdout] running 8 tests
[INFO] [stdout] test fs::tests::canonicalize ... ok
[INFO] [stdout] test fs::tests::file_not_found ... ok
[INFO] [stdout] test reader::tests::char_reader_diacritics ... ok
[INFO] [stdout] test fs::tests::read_to_string ... ok
[INFO] [stdout] test reader::tests::char_reader_match_str_term ... ok
[INFO] [stdout] test fs::tests::current_dir ... FAILED
[INFO] [stdout] test reader::tests::char_reader_errors::utf8_encoding_err_offset ... ok
[INFO] [stdout] test reader::tests::char_reader_errors::utf8_encoding_err_quote ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- fs::tests::current_dir stdout ----
[INFO] [stdout] thread 'fs::tests::current_dir' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/fs.rs:213:33
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5652217759a0 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5652217759a0 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5652217759a0 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5652217759a0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h767e17e1aa7df6a8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x565221798b7c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x565221772705 - std::io::Write::write_fmt::h6f1a9b91376a1376
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x565221777b8b - std::sys_common::backtrace::_print::h2769edb26a7eb606
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x565221777b8b - std::sys_common::backtrace::print::ha71f3549862b4cb6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x565221777b8b - std::panicking::default_hook::{{closure}}::h95488a3bade217f6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x56522177769c - std::panicking::default_hook::h290aa602c0fb11df
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x565221778231 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x565221777d37 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x565221775e7c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x565221777c99 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x5652215f39a1 - core::panicking::panic_fmt::hbe99dddd3092ba3c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x5652215f3a93 - core::result::unwrap_failed::hf79563fef9d11ab8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x5652215f5827 - core::result::Result<T,E>::unwrap::h510c0940ce2b025c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:1037:23
[INFO] [stdout]   17:     0x565221601baf - kg_io::fs::tests::current_dir::hd26150d97f29c09b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/fs.rs:213:9
[INFO] [stdout]   18:     0x565221601a8a - kg_io::fs::tests::current_dir::{{closure}}::hc3a611e73ca299c1
[INFO] [stdout]                                at /opt/rustwide/workdir/src/fs.rs:210:5
[INFO] [stdout]   19:     0x5652215f8e5e - core::ops::function::FnOnce::call_once::h0a1e068c06e6fe13
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x56522166add3 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x56522166add3 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x565221669880 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h028d0969d3f94d78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   23:     0x565221669880 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   24:     0x565221669880 - std::panicking::try::do_call::hf74f869706dec63b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x565221669880 - std::panicking::try::hd0b7346ebfaaae44
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x565221669880 - std::panic::catch_unwind::hdbf6904f7c253080
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   27:     0x565221669880 - test::run_test_in_process::h87e95a014ac91067
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x565221669880 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x565221644b52 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x565221644b52 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x5652216488c8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   32:     0x5652216488c8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   33:     0x5652216488c8 - std::panicking::try::do_call::hd58061792d05fa5c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x5652216488c8 - std::panicking::try::h3080747417e5af37
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x5652216488c8 - std::panic::catch_unwind::hfeba515dcf36cb66
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   36:     0x5652216488c8 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   37:     0x5652216488c8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x56522177d5d7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h902e2cf6655e1b0c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x56522177d5d7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h893a5452154309d1
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x56522177d5d7 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   41:     0x7f8f17d9f609 - start_thread
[INFO] [stdout]   42:     0x7f8f17b71293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     fs::tests::current_dir
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.54s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `Command { std: "docker" "inspect" "4dd1f8cf0ea78b4172d0b363a273601ff083d72916b3faa9087201b97e84f0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dd1f8cf0ea78b4172d0b363a273601ff083d72916b3faa9087201b97e84f0be", kill_on_drop: false }`
[INFO] [stdout] 4dd1f8cf0ea78b4172d0b363a273601ff083d72916b3faa9087201b97e84f0be