[INFO] updating cached repository Evanjs/grkcheck
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Evanjs/grkcheck
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Evanjs/grkcheck" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Evanjs/grkcheck"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Evanjs/grkcheck'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Evanjs/grkcheck" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Evanjs/grkcheck"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Evanjs/grkcheck'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b747c72dfc65110780a2aa9e7d32ef4779db8e3
[INFO] sha for GitHub repo Evanjs/grkcheck: 1b747c72dfc65110780a2aa9e7d32ef4779db8e3
[INFO] validating manifest of Evanjs/grkcheck on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Evanjs/grkcheck on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Evanjs/grkcheck
[INFO] finished frobbing Evanjs/grkcheck
[INFO] frobbed toml for Evanjs/grkcheck written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Evanjs/grkcheck/Cargo.toml
[INFO] started frobbing Evanjs/grkcheck
[INFO] finished frobbing Evanjs/grkcheck
[INFO] frobbed toml for Evanjs/grkcheck written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Evanjs/grkcheck/Cargo.toml
[INFO] crate Evanjs/grkcheck has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Evanjs/grkcheck against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-5/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Evanjs/grkcheck:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 26fb2e43c81e16f4a4265cc5651fa67207b5ccc715acf905fa24705abc70bd20
[INFO] running `"docker" "start" "-a" "26fb2e43c81e16f4a4265cc5651fa67207b5ccc715acf905fa24705abc70bd20"`
[INFO] [stderr]    Compiling libc v0.2.38
[INFO] [stderr]    Compiling procedural-masquerade v0.1.5
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]    Compiling serde_json v1.0.10
[INFO] [stderr]     Checking dtoa-short v0.3.1
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]    Compiling cssparser v0.23.2
[INFO] [stderr]    Compiling html5ever v0.22.0
[INFO] [stderr]     Checking futf v0.1.3
[INFO] [stderr]     Checking mio v0.6.13
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking openssl v0.9.24
[INFO] [stderr]     Checking nix v0.7.0
[INFO] [stderr]     Checking tendril v0.4.0
[INFO] [stderr]     Checking tokio-io v0.1.5
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling string_cache_codegen v0.4.0
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.4
[INFO] [stderr]    Compiling selectors v0.19.0
[INFO] [stderr]    Compiling cssparser-macros v0.3.0
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]    Compiling string_cache v0.7.1
[INFO] [stderr]    Compiling markup5ever v0.7.2
[INFO] [stderr]     Checking semver-parser v0.6.2
[INFO] [stderr]     Checking semver v0.4.1
[INFO] [stderr]     Checking linuxver v0.1.0
[INFO] [stderr]     Checking hyper v0.11.21
[INFO] [stderr]     Checking hyper-tls v0.1.2
[INFO] [stderr]     Checking kuchiki v0.7.0
[INFO] [stderr]     Checking reqwest v0.8.5
[INFO] [stderr]     Checking krcheck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0635]: unknown feature `alloc_system`
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(alloc_system)]
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: Could not compile `krcheck`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0635]: unknown feature `alloc_system`
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(alloc_system)]
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: Could not compile `krcheck`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "26fb2e43c81e16f4a4265cc5651fa67207b5ccc715acf905fa24705abc70bd20"`
[INFO] running `"docker" "rm" "-f" "26fb2e43c81e16f4a4265cc5651fa67207b5ccc715acf905fa24705abc70bd20"`
[INFO] [stdout] 26fb2e43c81e16f4a4265cc5651fa67207b5ccc715acf905fa24705abc70bd20