[INFO] crate supervisor-rs 0.5.9 is already in cache
[INFO] extracting crate supervisor-rs 0.5.9 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/supervisor-rs/0.5.9
[INFO] extracting crate supervisor-rs 0.5.9 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/supervisor-rs/0.5.9
[INFO] validating manifest of supervisor-rs-0.5.9 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of supervisor-rs-0.5.9 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing supervisor-rs-0.5.9
[INFO] finished frobbing supervisor-rs-0.5.9
[INFO] frobbed toml for supervisor-rs-0.5.9 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/supervisor-rs/0.5.9/Cargo.toml
[INFO] started frobbing supervisor-rs-0.5.9
[INFO] finished frobbing supervisor-rs-0.5.9
[INFO] frobbed toml for supervisor-rs-0.5.9 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/supervisor-rs/0.5.9/Cargo.toml
[INFO] crate supervisor-rs-0.5.9 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking supervisor-rs-0.5.9 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/supervisor-rs/0.5.9:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 167fdb81f1013c68484e5c467b1e86138bccc8046c293e9e110f35b6ccc0636b
[INFO] running `"docker" "start" "-a" "167fdb81f1013c68484e5c467b1e86138bccc8046c293e9e110f35b6ccc0636b"`
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking supervisor-rs v0.5.9 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `command_argvs`
[INFO] [stderr]    --> src/child.rs:229:5
[INFO] [stderr]     |
[INFO] [stderr] 229 |     fn command_argvs() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_ls`
[INFO] [stderr]    --> src/child.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn run_ls() {
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_hooks`
[INFO] [stderr]    --> src/child.rs:247:5
[INFO] [stderr]     |
[INFO] [stderr] 247 |     fn read_hooks() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.04s
[INFO] running `"docker" "inspect" "167fdb81f1013c68484e5c467b1e86138bccc8046c293e9e110f35b6ccc0636b"`
[INFO] running `"docker" "rm" "-f" "167fdb81f1013c68484e5c467b1e86138bccc8046c293e9e110f35b6ccc0636b"`
[INFO] [stdout] 167fdb81f1013c68484e5c467b1e86138bccc8046c293e9e110f35b6ccc0636b