[INFO] crate supervisor-rs 0.5.9 is already in cache
[INFO] extracting crate supervisor-rs 0.5.9 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/supervisor-rs/0.5.9
[INFO] extracting crate supervisor-rs 0.5.9 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/supervisor-rs/0.5.9
[INFO] validating manifest of supervisor-rs-0.5.9 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of supervisor-rs-0.5.9 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-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-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking supervisor-rs-0.5.9 against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-2/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bdb246793ee85359df3acec70c743d9e6ceddcde39f717e17537df43acc66e90
[INFO] running `"docker" "start" "-a" "bdb246793ee85359df3acec70c743d9e6ceddcde39f717e17537df43acc66e90"`
[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 3.20s
[INFO] running `"docker" "inspect" "bdb246793ee85359df3acec70c743d9e6ceddcde39f717e17537df43acc66e90"`
[INFO] running `"docker" "rm" "-f" "bdb246793ee85359df3acec70c743d9e6ceddcde39f717e17537df43acc66e90"`
[INFO] [stdout] bdb246793ee85359df3acec70c743d9e6ceddcde39f717e17537df43acc66e90