[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 master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJimskapt%2Fcastor_whispers" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jimskapt/castor_whispers on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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-6/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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef6736f992cf566c415653c72d38b8a9c77e7d02165b0765dfe5312728bb2e18
[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" "ef6736f992cf566c415653c72d38b8a9c77e7d02165b0765dfe5312728bb2e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef6736f992cf566c415653c72d38b8a9c77e7d02165b0765dfe5312728bb2e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef6736f992cf566c415653c72d38b8a9c77e7d02165b0765dfe5312728bb2e18", kill_on_drop: false }`
[INFO] [stdout] ef6736f992cf566c415653c72d38b8a9c77e7d02165b0765dfe5312728bb2e18
[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=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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--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] 8f5fb18a19ed6920aed77d43c9b79ae2d8ffc799ed304d4299b75baee353fb42
[INFO] running `Command { std: "docker" "start" "-a" "8f5fb18a19ed6920aed77d43c9b79ae2d8ffc799ed304d4299b75baee353fb42", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking toml v0.5.6
[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: 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: 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: 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 30.89s
[INFO] running `Command { std: "docker" "inspect" "8f5fb18a19ed6920aed77d43c9b79ae2d8ffc799ed304d4299b75baee353fb42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5fb18a19ed6920aed77d43c9b79ae2d8ffc799ed304d4299b75baee353fb42", kill_on_drop: false }`
[INFO] [stdout] 8f5fb18a19ed6920aed77d43c9b79ae2d8ffc799ed304d4299b75baee353fb42