[INFO] crate salmon 0.4.1 is already in cache
[INFO] extracting crate salmon 0.4.1 into work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/salmon/0.4.1
[INFO] extracting crate salmon 0.4.1 into work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/salmon/0.4.1
[INFO] validating manifest of salmon-0.4.1 on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of salmon-0.4.1 on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing salmon-0.4.1
[INFO] finished frobbing salmon-0.4.1
[INFO] frobbed toml for salmon-0.4.1 written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/salmon/0.4.1/Cargo.toml
[INFO] started frobbing salmon-0.4.1
[INFO] finished frobbing salmon-0.4.1
[INFO] frobbed toml for salmon-0.4.1 written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/salmon/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking salmon-0.4.1 against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-7/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/salmon/0.4.1:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 33c798e31b5e81af42317b4a2f4d993c5a6734e17429b5547ab938b4d370c553
[INFO] running `"docker" "start" "-a" "33c798e31b5e81af42317b4a2f4d993c5a6734e17429b5547ab938b4d370c553"`
[INFO] [stderr]    Compiling pulldown-cmark v0.5.2
[INFO] [stderr]    Compiling sass-sys v0.4.13
[INFO] [stderr]     Checking onig v4.3.2
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]     Checking selectors v0.21.0
[INFO] [stderr] error: Could not compile `serde`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.97/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="rc"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=2af3eceae972ba7e -C extra-filename=-2af3eceae972ba7e --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-a66edfed7d7c85ff.so --cap-lints allow --cap-lints=forbid --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg core_try_from --cfg std_atomic64 --cfg std_atomic` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `serde`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.97/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="rc"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=0ecbcda345d663fc -C extra-filename=-0ecbcda345d663fc --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-a66edfed7d7c85ff.so --cap-lints allow --cap-lints=forbid --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg core_try_from --cfg std_atomic64 --cfg std_atomic` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `pulldown-cmark`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name pulldown_cmark /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pulldown-cmark-0.5.2/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="getopts"' --cfg 'feature="simd"' -C metadata=0627e0e9cef30500 -C extra-filename=-0627e0e9cef30500 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern bitflags=/opt/crater/target/debug/deps/libbitflags-93044b4c0025955d.rmeta --extern getopts=/opt/crater/target/debug/deps/libgetopts-46f5e0c158ce1684.rmeta --extern memchr=/opt/crater/target/debug/deps/libmemchr-84933410f7441e67.rmeta --extern unicase=/opt/crater/target/debug/deps/libunicase-08ffaeb23fd09650.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `selectors`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name selectors /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/selectors-0.21.0/lib.rs --color never --crate-type lib --emit=dep-info,metadata -C debuginfo=2 -C metadata=229c1cecf368b84f -C extra-filename=-229c1cecf368b84f --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern bitflags=/opt/crater/target/debug/deps/libbitflags-93044b4c0025955d.rmeta --extern cssparser=/opt/crater/target/debug/deps/libcssparser-300fcdc70537d03d.rmeta --extern fxhash=/opt/crater/target/debug/deps/libfxhash-4625be7565465943.rmeta --extern log=/opt/crater/target/debug/deps/liblog-291d995b5e3b73e8.rmeta --extern matches=/opt/crater/target/debug/deps/libmatches-00fda56c93c5f1fe.rmeta --extern phf=/opt/crater/target/debug/deps/libphf-d2b96cb366dc1c34.rmeta --extern precomputed_hash=/opt/crater/target/debug/deps/libprecomputed_hash-dbb0ba762538d46f.rmeta --extern servo_arc=/opt/crater/target/debug/deps/libservo_arc-ad32690f34bb633a.rmeta --extern smallvec=/opt/crater/target/debug/deps/libsmallvec-ba9ca1a7834ca8da.rmeta --extern thin_slice=/opt/crater/target/debug/deps/libthin_slice-7d2124c348f3b944.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[ERROR] error running command: no output for 300 seconds
[INFO] running `"docker" "inspect" "33c798e31b5e81af42317b4a2f4d993c5a6734e17429b5547ab938b4d370c553"`
[INFO] running `"docker" "rm" "-f" "33c798e31b5e81af42317b4a2f4d993c5a6734e17429b5547ab938b4d370c553"`
[INFO] [stdout] 33c798e31b5e81af42317b4a2f4d993c5a6734e17429b5547ab938b4d370c553