[INFO] fetching crate kg-io 0.1.1...
[INFO] checking kg-io-0.1.1 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate kg-io 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate kg-io 0.1.1 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", 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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f04eb42e23c1044125a95584f3ecb9f800a3d64309ba979564747ec6cf9374f7
[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" "f04eb42e23c1044125a95584f3ecb9f800a3d64309ba979564747ec6cf9374f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f04eb42e23c1044125a95584f3ecb9f800a3d64309ba979564747ec6cf9374f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f04eb42e23c1044125a95584f3ecb9f800a3d64309ba979564747ec6cf9374f7", kill_on_drop: false }`
[INFO] [stdout] f04eb42e23c1044125a95584f3ecb9f800a3d64309ba979564747ec6cf9374f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2429f7bb30e9215ccdbb0b9f6b2ceb9b33ff4c5885013340db8f04b6380d1386
[INFO] running `Command { std: "docker" "start" "-a" "2429f7bb30e9215ccdbb0b9f6b2ceb9b33ff4c5885013340db8f04b6380d1386", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]    Compiling kg-utils v0.2.4
[INFO] [stderr]    Compiling kg-display v0.1.2
[INFO] [stderr]    Compiling synstructure v0.11.0
[INFO] [stderr]    Compiling kg-display-derive v0.1.1
[INFO] [stderr]     Checking kg-diag v0.1.1
[INFO] [stderr]     Checking 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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> benches/reader_dispatch.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn dyn_scan(r: &mut CharReader) -> ParseResult<usize> {
[INFO] [stdout]    |                     ^^^^^^^^^^ help: use `dyn`: `dyn CharReader`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: literal out of range for `u8`
[INFO] [stdout]   --> benches/reader_dispatch.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     for i in 0..1024 * 1024 {
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(overflowing_literals)]` on by default
[INFO] [stdout]    = note: the literal `1024` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: literal out of range for `u8`
[INFO] [stdout]   --> benches/reader_dispatch.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     for i in 0..1024 * 1024 {
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the literal `1024` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kg-io`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2429f7bb30e9215ccdbb0b9f6b2ceb9b33ff4c5885013340db8f04b6380d1386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2429f7bb30e9215ccdbb0b9f6b2ceb9b33ff4c5885013340db8f04b6380d1386", kill_on_drop: false }`
[INFO] [stdout] 2429f7bb30e9215ccdbb0b9f6b2ceb9b33ff4c5885013340db8f04b6380d1386