[INFO] fetching crate rust-timeit 0.3.0...
[INFO] testing rust-timeit-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rust-timeit 0.3.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate rust-timeit 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-timeit 0.3.0
[INFO] finished tweaking crates.io crate rust-timeit 0.3.0
[INFO] tweaked toml for crates.io crate rust-timeit 0.3.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate rust-timeit 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc5af41d3ede23af70a71bc69f03f45e4010502057eaf2464c27550fb815c634
[INFO] running `Command { std: "docker" "start" "-a" "bc5af41d3ede23af70a71bc69f03f45e4010502057eaf2464c27550fb815c634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc5af41d3ede23af70a71bc69f03f45e4010502057eaf2464c27550fb815c634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc5af41d3ede23af70a71bc69f03f45e4010502057eaf2464c27550fb815c634", kill_on_drop: false }`
[INFO] [stdout] bc5af41d3ede23af70a71bc69f03f45e4010502057eaf2464c27550fb815c634
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d7d8699e2879ba48ad5cb4e01e24222dab57821f5e3dbb72282150765080a61
[INFO] running `Command { std: "docker" "start" "-a" "0d7d8699e2879ba48ad5cb4e01e24222dab57821f5e3dbb72282150765080a61", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling argh_shared v0.1.4
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]    Compiling argh v0.1.4
[INFO] [stderr]    Compiling rust-timeit v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Help`
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |               Help,
[INFO] [stdout]    |               ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 | / perf_mode! {
[INFO] [stdout] 63 | |     Cycles => "cycles",
[INFO] [stdout] 64 | |     Instructions => "instructions",
[INFO] [stdout] 65 | |     Branches => "branches",
[INFO] [stdout] ...  |
[INFO] [stdout] 70 | |     RefCycles => "ref-cycles",
[INFO] [stdout] 71 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `perf_mode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.36s
[INFO] running `Command { std: "docker" "inspect" "0d7d8699e2879ba48ad5cb4e01e24222dab57821f5e3dbb72282150765080a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d7d8699e2879ba48ad5cb4e01e24222dab57821f5e3dbb72282150765080a61", kill_on_drop: false }`
[INFO] [stdout] 0d7d8699e2879ba48ad5cb4e01e24222dab57821f5e3dbb72282150765080a61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16f7de0d27a4543d5c500a73fcb95d3039bec0e91dca265ce9f2e48847ca06dd
[INFO] running `Command { std: "docker" "start" "-a" "16f7de0d27a4543d5c500a73fcb95d3039bec0e91dca265ce9f2e48847ca06dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-timeit v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Help`
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |               Help,
[INFO] [stdout]    |               ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 | / perf_mode! {
[INFO] [stdout] 63 | |     Cycles => "cycles",
[INFO] [stdout] 64 | |     Instructions => "instructions",
[INFO] [stdout] 65 | |     Branches => "branches",
[INFO] [stdout] ...  |
[INFO] [stdout] 70 | |     RefCycles => "ref-cycles",
[INFO] [stdout] 71 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `perf_mode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "16f7de0d27a4543d5c500a73fcb95d3039bec0e91dca265ce9f2e48847ca06dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16f7de0d27a4543d5c500a73fcb95d3039bec0e91dca265ce9f2e48847ca06dd", kill_on_drop: false }`
[INFO] [stdout] 16f7de0d27a4543d5c500a73fcb95d3039bec0e91dca265ce9f2e48847ca06dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d9608373d12aafb64356d2a2e8e89a173630b0475e75fb8ed41a68625b0d6815
[INFO] running `Command { std: "docker" "start" "-a" "d9608373d12aafb64356d2a2e8e89a173630b0475e75fb8ed41a68625b0d6815", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variant is never constructed: `Help`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:26:13
[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] 26 |               Help,
[INFO] [stdout] 
[INFO] [stderr]    |               ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 62 | / perf_mode! {
[INFO] [stderr] 63 | |     Cycles => "cycles",
[INFO] [stderr] 64 | |     Instructions => "instructions",
[INFO] [stderr] 65 | |     Branches => "branches",
[INFO] [stderr] ...  |
[INFO] [stderr] 70 | |     RefCycles => "ref-cycles",
[INFO] [stderr] 71 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `perf_mode` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-timeit` (bin "rust-timeit" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_timeit-ae8b9d71076c6784)
[INFO] running `Command { std: "docker" "inspect" "d9608373d12aafb64356d2a2e8e89a173630b0475e75fb8ed41a68625b0d6815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9608373d12aafb64356d2a2e8e89a173630b0475e75fb8ed41a68625b0d6815", kill_on_drop: false }`
[INFO] [stdout] d9608373d12aafb64356d2a2e8e89a173630b0475e75fb8ed41a68625b0d6815