[INFO] crate may 0.3.12 is already in cache
[INFO] extracting crate may 0.3.12 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/may/0.3.12
[INFO] extracting crate may 0.3.12 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/may/0.3.12
[INFO] validating manifest of may-0.3.12 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 may-0.3.12 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 may-0.3.12
[INFO] finished frobbing may-0.3.12
[INFO] frobbed toml for may-0.3.12 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/may/0.3.12/Cargo.toml
[INFO] started frobbing may-0.3.12
[INFO] finished frobbing may-0.3.12
[INFO] frobbed toml for may-0.3.12 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/may/0.3.12/Cargo.toml
[INFO] crate may-0.3.12 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 may-0.3.12 against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/may/0.3.12:/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 92f5ebe3cfd77db4c904f54cd56cb49974d33be1e7fd69c18b64aa10601e220c
[INFO] running `"docker" "start" "-a" "92f5ebe3cfd77db4c904f54cd56cb49974d33be1e7fd69c18b64aa10601e220c"`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling may_queue v0.1.6
[INFO] [stderr]    Compiling generator v0.6.16
[INFO] [stderr]    Compiling may v0.3.12 (/opt/crater/workdir)
[INFO] [stderr]     Checking socket2 v0.3.10
[INFO] [stderr]     Checking openssl v0.10.24
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking tungstenite v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]     Checking serde v1.0.97
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.80s
[INFO] running `"docker" "inspect" "92f5ebe3cfd77db4c904f54cd56cb49974d33be1e7fd69c18b64aa10601e220c"`
[INFO] running `"docker" "rm" "-f" "92f5ebe3cfd77db4c904f54cd56cb49974d33be1e7fd69c18b64aa10601e220c"`
[INFO] [stdout] 92f5ebe3cfd77db4c904f54cd56cb49974d33be1e7fd69c18b64aa10601e220c