[INFO] fetching crate logfmt 0.0.2...
[INFO] checking logfmt-0.0.2 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate logfmt 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate logfmt 0.0.2 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate logfmt 0.0.2
[INFO] finished tweaking crates.io crate logfmt 0.0.2
[INFO] tweaked toml for crates.io crate logfmt 0.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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] fcccaf1713219e07b8958c8a3ff6f8aa40e20c12e3de5e27fd25d02b2c63c944
[INFO] running `Command { std: "docker" "start" "-a" "fcccaf1713219e07b8958c8a3ff6f8aa40e20c12e3de5e27fd25d02b2c63c944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcccaf1713219e07b8958c8a3ff6f8aa40e20c12e3de5e27fd25d02b2c63c944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcccaf1713219e07b8958c8a3ff6f8aa40e20c12e3de5e27fd25d02b2c63c944", kill_on_drop: false }`
[INFO] [stdout] fcccaf1713219e07b8958c8a3ff6f8aa40e20c12e3de5e27fd25d02b2c63c944
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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] b86ff166a5b796f64a9bc743c4c62a9d108bf6f72f8998ed4bfe3ed5d1392fa4
[INFO] running `Command { std: "docker" "start" "-a" "b86ff166a5b796f64a9bc743c4c62a9d108bf6f72f8998ed4bfe3ed5d1392fa4", kill_on_drop: false }`
[INFO] [stderr]     Checking logfmt v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stdout]  --> benches/lib.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[bench]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[deny(soft_unstable)]` 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 a future release!
[INFO] [stdout]   = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'test'
[INFO] [stdout]  --> benches/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout]   = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'test'
[INFO] [stdout]  --> benches/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout]   = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'test'
[INFO] [stdout]  --> benches/lib.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn parse(b: &mut Bencher) {
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout]   = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'test'
[INFO] [stdout]  --> benches/lib.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 |     b.iter(|| {
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout]   = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `logfmt`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b86ff166a5b796f64a9bc743c4c62a9d108bf6f72f8998ed4bfe3ed5d1392fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b86ff166a5b796f64a9bc743c4c62a9d108bf6f72f8998ed4bfe3ed5d1392fa4", kill_on_drop: false }`
[INFO] [stdout] b86ff166a5b796f64a9bc743c4c62a9d108bf6f72f8998ed4bfe3ed5d1392fa4