[INFO] fetching crate psl 2.0.55...
[INFO] checking psl-2.0.55 against 1.55.0 for beta-1.56-3
[INFO] extracting crate psl 2.0.55 into /workspace/builds/worker-66/source
[INFO] validating manifest of crates.io crate psl 2.0.55 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate psl 2.0.55
[INFO] finished tweaking crates.io crate psl 2.0.55
[INFO] tweaked toml for crates.io crate psl 2.0.55 written to /workspace/builds/worker-66/source/Cargo.toml
[INFO] crate crates.io crate psl 2.0.55 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36e0e66e0059997834a298864cd6c4e6968f608e525add04b32642af7c1d9bde
[INFO] running `Command { std: "docker" "start" "-a" "36e0e66e0059997834a298864cd6c4e6968f608e525add04b32642af7c1d9bde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36e0e66e0059997834a298864cd6c4e6968f608e525add04b32642af7c1d9bde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36e0e66e0059997834a298864cd6c4e6968f608e525add04b32642af7c1d9bde", kill_on_drop: false }`
[INFO] [stdout] 36e0e66e0059997834a298864cd6c4e6968f608e525add04b32642af7c1d9bde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02b093c80a3de2b88d99db82b4c1db79763c4c1fe1e576bb121f29cb9eb5915e
[INFO] running `Command { std: "docker" "start" "-a" "02b093c80a3de2b88d99db82b4c1db79763c4c1fe1e576bb121f29cb9eb5915e", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]     Checking psl-types v2.0.7
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]     Checking psl v2.0.55 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking rspec v1.0.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/benches.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `psl` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/list.rs:44:36
[INFO] [stdout]    |
[INFO] [stdout] 44 |   ...                   panic!(format!(
[INFO] [stdout]    |  ______________________________^
[INFO] [stdout] 45 | | ...                       "line {} of the test file doesn't seem to be valid",
[INFO] [stdout] 46 | | ...                       i
[INFO] [stdout] 47 | | ...                   ));
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 44 |                             panic!(
[INFO] [stdout] 45 |                                 "line {} of the test file doesn't seem to be valid",
[INFO] [stdout] 46 |                                 i
[INFO] [stdout] 47 |                             );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/list.rs:68:36
[INFO] [stdout]    |
[INFO] [stdout] 68 |   ...                   panic!(format!(
[INFO] [stdout]    |  ______________________________^
[INFO] [stdout] 69 | | ...                       "line {} of the test file doesn't seem to be valid",
[INFO] [stdout] 70 | | ...                       i
[INFO] [stdout] 71 | | ...                   ));
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 68 |                             panic!(
[INFO] [stdout] 69 |                                 "line {} of the test file doesn't seem to be valid",
[INFO] [stdout] 70 |                                 i
[INFO] [stdout] 71 |                             );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "02b093c80a3de2b88d99db82b4c1db79763c4c1fe1e576bb121f29cb9eb5915e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02b093c80a3de2b88d99db82b4c1db79763c4c1fe1e576bb121f29cb9eb5915e", kill_on_drop: false }`
[INFO] [stdout] 02b093c80a3de2b88d99db82b4c1db79763c4c1fe1e576bb121f29cb9eb5915e
