[INFO] fetching crate testmark 0.1.1...
[INFO] testing testmark-0.1.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate testmark 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate testmark 0.1.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate testmark 0.1.1
[INFO] finished tweaking crates.io crate testmark 0.1.1
[INFO] tweaked toml for crates.io crate testmark 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate testmark 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32dab03cb9fdc40ffd8f95ef6f973a041dd9c640ad3eec50d3c4cb13d5657907
[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" "32dab03cb9fdc40ffd8f95ef6f973a041dd9c640ad3eec50d3c4cb13d5657907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32dab03cb9fdc40ffd8f95ef6f973a041dd9c640ad3eec50d3c4cb13d5657907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32dab03cb9fdc40ffd8f95ef6f973a041dd9c640ad3eec50d3c4cb13d5657907", kill_on_drop: false }`
[INFO] [stdout] 32dab03cb9fdc40ffd8f95ef6f973a041dd9c640ad3eec50d3c4cb13d5657907
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--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] cba42ccd5599da35f0e65775ae2b5554265cf7afc9f9292dddf4c6c26160b328
[INFO] running `Command { std: "docker" "start" "-a" "cba42ccd5599da35f0e65775ae2b5554265cf7afc9f9292dddf4c6c26160b328", kill_on_drop: false }`
[INFO] [stderr]    Compiling testmark v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]  --> src/main.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut x: u64 = 42;
[INFO] [stdout]   |             ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]   = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "cba42ccd5599da35f0e65775ae2b5554265cf7afc9f9292dddf4c6c26160b328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cba42ccd5599da35f0e65775ae2b5554265cf7afc9f9292dddf4c6c26160b328", kill_on_drop: false }`
[INFO] [stdout] cba42ccd5599da35f0e65775ae2b5554265cf7afc9f9292dddf4c6c26160b328
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--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] 9b4f90b67f78d463c0d1967b6222bacc170f9d2e6fe507f56380f00995d29aae
[INFO] running `Command { std: "docker" "start" "-a" "9b4f90b67f78d463c0d1967b6222bacc170f9d2e6fe507f56380f00995d29aae", kill_on_drop: false }`
[INFO] [stderr]    Compiling testmark v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]  --> src/main.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut x: u64 = 42;
[INFO] [stdout]   |             ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]   = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "9b4f90b67f78d463c0d1967b6222bacc170f9d2e6fe507f56380f00995d29aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b4f90b67f78d463c0d1967b6222bacc170f9d2e6fe507f56380f00995d29aae", kill_on_drop: false }`
[INFO] [stdout] 9b4f90b67f78d463c0d1967b6222bacc170f9d2e6fe507f56380f00995d29aae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02cdd1668c1054e6adbd44ead8248c92e465ce0abbd8a888591d6fca2d92da92
[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" "02cdd1668c1054e6adbd44ead8248c92e465ce0abbd8a888591d6fca2d92da92", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:8:13
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 8 |     let mut x: u64 = 42;
[INFO] [stdout] 
[INFO] [stderr]   |             ^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stderr]   = note: consider using `_x` instead
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `testmark` (bin "testmark" test) generated 1 warning
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/testmark-ea0a30eab9cc2972)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/testmark-35f6e960c7a2e95b)
[INFO] [stderr]    Doc-tests testmark
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "02cdd1668c1054e6adbd44ead8248c92e465ce0abbd8a888591d6fca2d92da92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02cdd1668c1054e6adbd44ead8248c92e465ce0abbd8a888591d6fca2d92da92", kill_on_drop: false }`
[INFO] [stdout] 02cdd1668c1054e6adbd44ead8248c92e465ce0abbd8a888591d6fca2d92da92