[INFO] cloning repository https://github.com/Gregory-Meyer/adaptive-mutex-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gregory-Meyer/adaptive-mutex-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregory-Meyer%2Fadaptive-mutex-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregory-Meyer%2Fadaptive-mutex-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d769ff63aa639ea7447a9c8785e8cca975d406dc
[INFO] testing Gregory-Meyer/adaptive-mutex-rs against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregory-Meyer%2Fadaptive-mutex-rs" "/workspace/builds/worker-53/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-53/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Gregory-Meyer/adaptive-mutex-rs on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Gregory-Meyer/adaptive-mutex-rs
[INFO] finished tweaking git repo https://github.com/Gregory-Meyer/adaptive-mutex-rs
[INFO] tweaked toml for git repo https://github.com/Gregory-Meyer/adaptive-mutex-rs written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] crate git repo https://github.com/Gregory-Meyer/adaptive-mutex-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6e470f007a3431b5a519a4b8447825ee0f2f699e97e8e439bedbf4d05caaf57
[INFO] running `Command { std: "docker" "start" "-a" "a6e470f007a3431b5a519a4b8447825ee0f2f699e97e8e439bedbf4d05caaf57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6e470f007a3431b5a519a4b8447825ee0f2f699e97e8e439bedbf4d05caaf57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6e470f007a3431b5a519a4b8447825ee0f2f699e97e8e439bedbf4d05caaf57", kill_on_drop: false }`
[INFO] [stdout] a6e470f007a3431b5a519a4b8447825ee0f2f699e97e8e439bedbf4d05caaf57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4832b91f22fb1b8e95d63e63a09de5b249397e66c40d18aa471d83e6ff9e5e4b
[INFO] running `Command { std: "docker" "start" "-a" "4832b91f22fb1b8e95d63e63a09de5b249397e66c40d18aa471d83e6ff9e5e4b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling adaptive-mutex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_ISIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/lib.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::atomic::{AtomicIsize, ATOMIC_ISIZE_INIT, Ordering};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_ISIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |             estimator: ATOMIC_ISIZE_INIT,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicIsize::new(0)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adaptive-mutex` due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4832b91f22fb1b8e95d63e63a09de5b249397e66c40d18aa471d83e6ff9e5e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4832b91f22fb1b8e95d63e63a09de5b249397e66c40d18aa471d83e6ff9e5e4b", kill_on_drop: false }`
[INFO] [stdout] 4832b91f22fb1b8e95d63e63a09de5b249397e66c40d18aa471d83e6ff9e5e4b