[INFO] fetching crate mediocore 0.1.0... [INFO] testing mediocore-0.1.0 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate mediocore 0.1.0 into /workspace/builds/worker-52/source [INFO] validating manifest of crates.io crate mediocore 0.1.0 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 mediocore 0.1.0 [INFO] finished tweaking crates.io crate mediocore 0.1.0 [INFO] tweaked toml for crates.io crate mediocore 0.1.0 written to /workspace/builds/worker-52/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [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-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 969fff181bbd5e69d9581fe27389e645e8ce0eebcb8f6637c6d3aac8776fb373 [INFO] running `Command { std: "docker" "start" "-a" "969fff181bbd5e69d9581fe27389e645e8ce0eebcb8f6637c6d3aac8776fb373", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "969fff181bbd5e69d9581fe27389e645e8ce0eebcb8f6637c6d3aac8776fb373", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "969fff181bbd5e69d9581fe27389e645e8ce0eebcb8f6637c6d3aac8776fb373", kill_on_drop: false }` [INFO] [stdout] 969fff181bbd5e69d9581fe27389e645e8ce0eebcb8f6637c6d3aac8776fb373 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 0401cea240406114803918283ee9d29118f37e53e79f8da92b505e87b71f9127 [INFO] running `Command { std: "docker" "start" "-a" "0401cea240406114803918283ee9d29118f37e53e79f8da92b505e87b71f9127", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling libc v0.2.101 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling serde_json v1.0.67 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Compiling structopt v0.2.18 [INFO] [stderr] Compiling mediocore v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/mdcr.rs:235:17 [INFO] [stdout] | [INFO] [stdout] 235 | let mut pad_to = creline.len() + per_core_chars; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 17.81s [INFO] running `Command { std: "docker" "inspect" "0401cea240406114803918283ee9d29118f37e53e79f8da92b505e87b71f9127", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0401cea240406114803918283ee9d29118f37e53e79f8da92b505e87b71f9127", kill_on_drop: false }` [INFO] [stdout] 0401cea240406114803918283ee9d29118f37e53e79f8da92b505e87b71f9127 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 992cc9334fc900ffeb49d7a998d0c89be91c5ade5dcd31810793288e3a5cfeb3 [INFO] running `Command { std: "docker" "start" "-a" "992cc9334fc900ffeb49d7a998d0c89be91c5ade5dcd31810793288e3a5cfeb3", kill_on_drop: false }` [INFO] [stderr] Compiling mediocore v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/mdcr.rs:235:17 [INFO] [stdout] | [INFO] [stdout] 235 | let mut pad_to = creline.len() + per_core_chars; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.00s [INFO] running `Command { std: "docker" "inspect" "992cc9334fc900ffeb49d7a998d0c89be91c5ade5dcd31810793288e3a5cfeb3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "992cc9334fc900ffeb49d7a998d0c89be91c5ade5dcd31810793288e3a5cfeb3", kill_on_drop: false }` [INFO] [stdout] 992cc9334fc900ffeb49d7a998d0c89be91c5ade5dcd31810793288e3a5cfeb3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 9656f05d6bcaa9e6e6b896e9a0324d2566b918902c821bbc83f1f0052ebb2823 [INFO] running `Command { std: "docker" "start" "-a" "9656f05d6bcaa9e6e6b896e9a0324d2566b918902c821bbc83f1f0052ebb2823", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/mdcr.rs:235:17 [INFO] [stderr] | [INFO] [stderr] 235 | let mut pad_to = creline.len() + per_core_chars; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `mediocore` (bin "mdcr" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/mediocore-b4fb166b71f3fd73) [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/mdcr-4c285c160c32b759) [INFO] [stdout] running 2 tests [INFO] [stdout] test test::freq_validation ... ok [INFO] [stdout] test test::govnor_validation ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests mediocore [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] [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" "9656f05d6bcaa9e6e6b896e9a0324d2566b918902c821bbc83f1f0052ebb2823", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9656f05d6bcaa9e6e6b896e9a0324d2566b918902c821bbc83f1f0052ebb2823", kill_on_drop: false }` [INFO] [stdout] 9656f05d6bcaa9e6e6b896e9a0324d2566b918902c821bbc83f1f0052ebb2823