[INFO] fetching crate must 0.2.0...
[INFO] testing must-0.2.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate must 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate must 0.2.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate must 0.2.0
[INFO] finished tweaking crates.io crate must 0.2.0
[INFO] tweaked toml for crates.io crate must 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mutator v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", 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] 9a827ff4420e2c546acf5e8ef6b2a1880a6e4a7e1e677fc8a5182c1216709c78
[INFO] running `Command { std: "docker" "start" "-a" "9a827ff4420e2c546acf5e8ef6b2a1880a6e4a7e1e677fc8a5182c1216709c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a827ff4420e2c546acf5e8ef6b2a1880a6e4a7e1e677fc8a5182c1216709c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a827ff4420e2c546acf5e8ef6b2a1880a6e4a7e1e677fc8a5182c1216709c78", kill_on_drop: false }`
[INFO] [stdout] 9a827ff4420e2c546acf5e8ef6b2a1880a6e4a7e1e677fc8a5182c1216709c78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41de57c24d7004933b25a010df7a7567c5fb7dd7e4986e1613c6dad474bbf2ff
[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" "41de57c24d7004933b25a010df7a7567c5fb7dd7e4986e1613c6dad474bbf2ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling mutator v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling must v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<std::error::Error>),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/matchers/text.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:76:44
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if self.is_ascii() {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.78s
[INFO] running `Command { std: "docker" "inspect" "41de57c24d7004933b25a010df7a7567c5fb7dd7e4986e1613c6dad474bbf2ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41de57c24d7004933b25a010df7a7567c5fb7dd7e4986e1613c6dad474bbf2ff", kill_on_drop: false }`
[INFO] [stdout] 41de57c24d7004933b25a010df7a7567c5fb7dd7e4986e1613c6dad474bbf2ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bef8dceed85d9b67ece24abf60311d108b9ad857c9b1cc84c5933e5729d4bbb
[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" "4bef8dceed85d9b67ece24abf60311d108b9ad857c9b1cc84c5933e5729d4bbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<std::error::Error>),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/matchers/text.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:76:44
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if self.is_ascii() {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling must v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<std::error::Error>),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/matchers/text.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:76:44
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if self.is_ascii() {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.61s
[INFO] running `Command { std: "docker" "inspect" "4bef8dceed85d9b67ece24abf60311d108b9ad857c9b1cc84c5933e5729d4bbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bef8dceed85d9b67ece24abf60311d108b9ad857c9b1cc84c5933e5729d4bbb", kill_on_drop: false }`
[INFO] [stdout] 4bef8dceed85d9b67ece24abf60311d108b9ad857c9b1cc84c5933e5729d4bbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9d0a088972a6417d4da6254bb1c32c1eb00a17504cae5ec05169f2278455e2ca
[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" "9d0a088972a6417d4da6254bb1c32c1eb00a17504cae5ec05169f2278455e2ca", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Error(Box<std::error::Error>),
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]  --> src/matchers/text.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:58:40
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:76:44
[INFO] [stderr]    |
[INFO] [stderr] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stderr]    |                                            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:77:43
[INFO] [stderr]    |
[INFO] [stderr] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stderr]    |                                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:60:11
[INFO] [stderr]    |
[INFO] [stderr] 60 |         if self.is_ascii() {
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:68:11
[INFO] [stderr]    |
[INFO] [stderr] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Error(Box<std::error::Error>),
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]  --> src/matchers/text.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:58:40
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:76:44
[INFO] [stderr]    |
[INFO] [stderr] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stderr]    |                                            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:77:43
[INFO] [stderr]    |
[INFO] [stderr] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stderr]    |                                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:60:11
[INFO] [stderr]    |
[INFO] [stderr] 60 |         if self.is_ascii() {
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:68:11
[INFO] [stderr]    |
[INFO] [stderr] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/must-14e49268b13104e2)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test marker::collections::tests::test ... ok
[INFO] [stdout] test matchers::range::test_is_in_range ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/compile.rs (/opt/rustwide/target/debug/deps/compile-d5ca7e033c0018b9)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test must_be ... ok
[INFO] [stdout] test must_be_upper ... ok
[INFO] [stdout] test must_have_len ... ok
[INFO] [stdout] test must_be_in_range ... ok
[INFO] [stdout] test test_some ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/failure.rs (/opt/rustwide/target/debug/deps/failure-b04631890c8f5252)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_it ... ok
[INFO] [stdout] test custom_msg_fmt ... ok
[INFO] [stdout] test test ... ok
[INFO] [stdout] test custom_msg ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/panic_on_drop.rs (/opt/rustwide/target/debug/deps/panic_on_drop-dd1fa41b22d55fdb)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_on_drop ... ok
[INFO] [stdout] test test_only_once_when_or_called ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests must
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/lib.rs - (line 12) ... ignored
[INFO] [stdout] test src/lib.rs - (line 22) ... ignored
[INFO] [stdout] test src/lib.rs - (line 36) ... ignored
[INFO] [stdout] test src/lib.rs - (line 5) ... ignored
[INFO] [stdout] test src/marker/range.rs - marker::range::RangeArgument::start (line 16) ... FAILED
[INFO] [stdout] test src/marker/range.rs - marker::range::RangeArgument::end (line 39) ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name must --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-69f865bb615f58f1.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-ed86ec8195ba7bde.rlib --extern must=/opt/rustwide/target/debug/deps/libmust-b30b2dad5dc678bc.rlib --extern mutator=/opt/rustwide/target/debug/deps/libmutator-3349474b079dfa7d.rlib --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-a6f558dd540c904a.rlib -C embed-bitcode=no --cfg 'feature="default"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "9d0a088972a6417d4da6254bb1c32c1eb00a17504cae5ec05169f2278455e2ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d0a088972a6417d4da6254bb1c32c1eb00a17504cae5ec05169f2278455e2ca", kill_on_drop: false }`
[INFO] [stdout] 9d0a088972a6417d4da6254bb1c32c1eb00a17504cae5ec05169f2278455e2ca