[INFO] crate peroxide 0.11.7 is already in cache
[INFO] extracting crate peroxide 0.11.7 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/peroxide/0.11.7
[INFO] extracting crate peroxide 0.11.7 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/peroxide/0.11.7
[INFO] validating manifest of peroxide-0.11.7 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 peroxide-0.11.7 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 peroxide-0.11.7
[INFO] finished frobbing peroxide-0.11.7
[INFO] frobbed toml for peroxide-0.11.7 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/peroxide/0.11.7/Cargo.toml
[INFO] started frobbing peroxide-0.11.7
[INFO] finished frobbing peroxide-0.11.7
[INFO] frobbed toml for peroxide-0.11.7 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/peroxide/0.11.7/Cargo.toml
[INFO] crate peroxide-0.11.7 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking peroxide-0.11.7 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/peroxide/0.11.7:/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] b454616bdf0360cd7a7163874ef78cca3b1fc854aa14420fda5ec253665f6ecb
[INFO] running `"docker" "start" "-a" "b454616bdf0360cd7a7163874ef78cca3b1fc854aa14420fda5ec253665f6ecb"`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]     Checking iter-read v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling regex-syntax v0.6.8
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling pyo3-derive-backend v0.7.0
[INFO] [stderr]    Compiling pyo3 v0.7.0
[INFO] [stderr]     Checking bstr v0.2.2
[INFO] [stderr]     Checking serde-pickle v0.5.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]    Compiling ghost v0.1.0
[INFO] [stderr]    Compiling inventory-impl v0.1.3
[INFO] [stderr]    Compiling ctor v0.1.9
[INFO] [stderr]    Compiling pyo3cls v0.7.0
[INFO] [stderr]     Checking inventory v0.1.3
[INFO] [stderr]     Checking peroxide v0.11.7 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `zlabel`
[INFO] [stderr]    --> src/util/plot.rs:195:30
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn set_zlabel(&mut self, zlabel: &str) -> &mut Self {
[INFO] [stderr]     |                              ^^^^^^ help: consider prefixing with an underscore: `_zlabel`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `zlabel`
[INFO] [stderr]    --> src/util/plot.rs:195:30
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn set_zlabel(&mut self, zlabel: &str) -> &mut Self {
[INFO] [stderr]     |                              ^^^^^^ help: consider prefixing with an underscore: `_zlabel`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `"docker" "inspect" "b454616bdf0360cd7a7163874ef78cca3b1fc854aa14420fda5ec253665f6ecb"`
[INFO] running `"docker" "rm" "-f" "b454616bdf0360cd7a7163874ef78cca3b1fc854aa14420fda5ec253665f6ecb"`
[INFO] [stdout] b454616bdf0360cd7a7163874ef78cca3b1fc854aa14420fda5ec253665f6ecb