[INFO] cloning repository https://github.com/Jimskapt/castor_whispers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jimskapt/castor_whispers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJimskapt%2Fcastor_whispers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJimskapt%2Fcastor_whispers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37dbdfa90dca292381df008f2206633b5dbb8811
[INFO] checking Jimskapt/castor_whispers against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJimskapt%2Fcastor_whispers" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jimskapt/castor_whispers on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jimskapt/castor_whispers
[INFO] finished tweaking git repo https://github.com/Jimskapt/castor_whispers
[INFO] tweaked toml for git repo https://github.com/Jimskapt/castor_whispers written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Jimskapt/castor_whispers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b401ef32d6decd3134fecd67400e4b1eddd33f8cd979f66cee9763dc9af50843
[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" "b401ef32d6decd3134fecd67400e4b1eddd33f8cd979f66cee9763dc9af50843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b401ef32d6decd3134fecd67400e4b1eddd33f8cd979f66cee9763dc9af50843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b401ef32d6decd3134fecd67400e4b1eddd33f8cd979f66cee9763dc9af50843", kill_on_drop: false }`
[INFO] [stdout] b401ef32d6decd3134fecd67400e4b1eddd33f8cd979f66cee9763dc9af50843
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b19a54536bc0552973173eee1cc5f3428d538853a2aa0a05a879e0666e3318d
[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" "2b19a54536bc0552973173eee1cc5f3428d538853a2aa0a05a879e0666e3318d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking castor_whispers v3.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::comment::comment`
[INFO] [stdout]  --> src/tests/comment_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::comment::comment;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::only_commented::only_commented`
[INFO] [stdout]  --> src/tests/only_commented_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::only_commented::only_commented;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `comment_on` is never read
[INFO] [stdout]   --> src/comment.rs:78:3
[INFO] [stdout]    |
[INFO] [stdout] 78 |         comment_on = false; // this is just a precaution in case the code that follows this line evolves.
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `comment_on` is never read
[INFO] [stdout]   --> src/comment.rs:78:3
[INFO] [stdout]    |
[INFO] [stdout] 78 |         comment_on = false; // this is just a precaution in case the code that follows this line evolves.
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `only_uncommented`
[INFO] [stdout]  --> src/only_uncommented.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn only_uncommented(_input_content: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `only_uncommented`
[INFO] [stdout]  --> src/only_uncommented.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn only_uncommented(_input_content: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.93s
[INFO] running `Command { std: "docker" "inspect" "2b19a54536bc0552973173eee1cc5f3428d538853a2aa0a05a879e0666e3318d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b19a54536bc0552973173eee1cc5f3428d538853a2aa0a05a879e0666e3318d", kill_on_drop: false }`
[INFO] [stdout] 2b19a54536bc0552973173eee1cc5f3428d538853a2aa0a05a879e0666e3318d