[INFO] fetching crate mediocore 0.1.0... [INFO] testing mediocore-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] extracting crate mediocore 0.1.0 into /workspace/builds/worker-13/source [INFO] validating manifest of crates.io crate mediocore 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-13/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5990e52e6fcf59ded5cae95a1305aef6fe5078a9a5abaa1dfd7b6dca82cbb3fe [INFO] running `Command { std: "docker" "start" "-a" "5990e52e6fcf59ded5cae95a1305aef6fe5078a9a5abaa1dfd7b6dca82cbb3fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5990e52e6fcf59ded5cae95a1305aef6fe5078a9a5abaa1dfd7b6dca82cbb3fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5990e52e6fcf59ded5cae95a1305aef6fe5078a9a5abaa1dfd7b6dca82cbb3fe", kill_on_drop: false }` [INFO] [stdout] 5990e52e6fcf59ded5cae95a1305aef6fe5078a9a5abaa1dfd7b6dca82cbb3fe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0c29bfcc9184cfc6ad2472f98fbc45d6d245ef13c7912ca1a2dd7bcea726c38f [INFO] running `Command { std: "docker" "start" "-a" "0c29bfcc9184cfc6ad2472f98fbc45d6d245ef13c7912ca1a2dd7bcea726c38f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling unicode-width v0.1.9 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling heck v0.3.3 [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 serde_derive v1.0.130 [INFO] [stderr] Compiling serde_json v1.0.71 [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 11.12s [INFO] running `Command { std: "docker" "inspect" "0c29bfcc9184cfc6ad2472f98fbc45d6d245ef13c7912ca1a2dd7bcea726c38f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c29bfcc9184cfc6ad2472f98fbc45d6d245ef13c7912ca1a2dd7bcea726c38f", kill_on_drop: false }` [INFO] [stdout] 0c29bfcc9184cfc6ad2472f98fbc45d6d245ef13c7912ca1a2dd7bcea726c38f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 539693a6c8a4d2634b35cca3c92b2c39c691f96e22eeeffb9f192975f3c4a0c5 [INFO] running `Command { std: "docker" "start" "-a" "539693a6c8a4d2634b35cca3c92b2c39c691f96e22eeeffb9f192975f3c4a0c5", 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 0.99s [INFO] running `Command { std: "docker" "inspect" "539693a6c8a4d2634b35cca3c92b2c39c691f96e22eeeffb9f192975f3c4a0c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "539693a6c8a4d2634b35cca3c92b2c39c691f96e22eeeffb9f192975f3c4a0c5", kill_on_drop: false }` [INFO] [stdout] 539693a6c8a4d2634b35cca3c92b2c39c691f96e22eeeffb9f192975f3c4a0c5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e12eadc1411e9eec53248d54820951f3d0c1b6164712326a73d2bdca6c104de5 [INFO] running `Command { std: "docker" "start" "-a" "e12eadc1411e9eec53248d54820951f3d0c1b6164712326a73d2bdca6c104de5", 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 0.04s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/mediocore-ffecaf60546717f9) [INFO] [stdout] [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] Running unittests (/opt/rustwide/target/debug/deps/mdcr-0e9e6f0e784107aa) [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] [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] running `Command { std: "docker" "inspect" "e12eadc1411e9eec53248d54820951f3d0c1b6164712326a73d2bdca6c104de5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e12eadc1411e9eec53248d54820951f3d0c1b6164712326a73d2bdca6c104de5", kill_on_drop: false }` [INFO] [stdout] e12eadc1411e9eec53248d54820951f3d0c1b6164712326a73d2bdca6c104de5