[INFO] crate etch 0.3.0 is already in cache
[INFO] extracting crate etch 0.3.0 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/etch/0.3.0
[INFO] extracting crate etch 0.3.0 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/etch/0.3.0
[INFO] validating manifest of etch-0.3.0 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of etch-0.3.0 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing etch-0.3.0
[INFO] finished frobbing etch-0.3.0
[INFO] frobbed toml for etch-0.3.0 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/etch/0.3.0/Cargo.toml
[INFO] started frobbing etch-0.3.0
[INFO] finished frobbing etch-0.3.0
[INFO] frobbed toml for etch-0.3.0 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/etch/0.3.0/Cargo.toml
[INFO] crate etch-0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking etch-0.3.0 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/etch/0.3.0:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bb6cd028aece239bdce3d9cea05e9b2414b9c437f503c564b58d5007fd3f3cde
[INFO] running `"docker" "start" "-a" "bb6cd028aece239bdce3d9cea05e9b2414b9c437f503c564b58d5007fd3f3cde"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]    Compiling onig_sys v69.1.0
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking onig v4.3.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling paste-impl v0.1.5
[INFO] [stderr]     Checking paste v0.1.5
[INFO] [stderr]     Checking glue v0.7.0
[INFO] [stderr]     Checking serde v1.0.91
[INFO] [stderr]     Checking plist v0.4.1
[INFO] [stderr]     Checking bincode v1.1.4
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking syntect v3.2.0
[INFO] [stderr]     Checking etch v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.98s
[INFO] running `"docker" "inspect" "bb6cd028aece239bdce3d9cea05e9b2414b9c437f503c564b58d5007fd3f3cde"`
[INFO] running `"docker" "rm" "-f" "bb6cd028aece239bdce3d9cea05e9b2414b9c437f503c564b58d5007fd3f3cde"`
[INFO] [stdout] bb6cd028aece239bdce3d9cea05e9b2414b9c437f503c564b58d5007fd3f3cde