[INFO] updating cached repository jxs/follower-maze-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jxs/follower-maze-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jxs/follower-maze-rust" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/jxs/follower-maze-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/jxs/follower-maze-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jxs/follower-maze-rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/jxs/follower-maze-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/jxs/follower-maze-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e47165e00c7599868cf7afaf12a7f1a459ed4997
[INFO] sha for GitHub repo jxs/follower-maze-rust: e47165e00c7599868cf7afaf12a7f1a459ed4997
[INFO] validating manifest of jxs/follower-maze-rust on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jxs/follower-maze-rust on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jxs/follower-maze-rust
[INFO] finished frobbing jxs/follower-maze-rust
[INFO] frobbed toml for jxs/follower-maze-rust written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/jxs/follower-maze-rust/Cargo.toml
[INFO] started frobbing jxs/follower-maze-rust
[INFO] finished frobbing jxs/follower-maze-rust
[INFO] frobbed toml for jxs/follower-maze-rust written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/jxs/follower-maze-rust/Cargo.toml
[INFO] crate jxs/follower-maze-rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building jxs/follower-maze-rust against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/jxs/follower-maze-rust:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 06c5c71afceea00304f3ba0071b87981cfed5508f0bae606ef02e1b5756fa7a8
[INFO] running `"docker" "start" "-a" "06c5c71afceea00304f3ba0071b87981cfed5508f0bae606ef02e1b5756fa7a8"`
[INFO] [stderr]    Compiling tokio-executor v0.1.4
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling tokio-io v0.1.8
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling tokio-current-thread v0.1.1
[INFO] [stderr]    Compiling tokio-timer v0.2.6
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling mio-uds v0.6.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.3
[INFO] [stderr]    Compiling tokio-threadpool v0.1.6
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.1
[INFO] [stderr]    Compiling tokio-uds v0.2.1
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling tokio v0.1.8
[INFO] [stderr]    Compiling followermaze v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.01s
[INFO] running `"docker" "inspect" "06c5c71afceea00304f3ba0071b87981cfed5508f0bae606ef02e1b5756fa7a8"`
[INFO] running `"docker" "rm" "-f" "06c5c71afceea00304f3ba0071b87981cfed5508f0bae606ef02e1b5756fa7a8"`
[INFO] [stdout] 06c5c71afceea00304f3ba0071b87981cfed5508f0bae606ef02e1b5756fa7a8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/jxs/follower-maze-rust:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 47272af7f33ea947b2a850e6335cdac56d8e63db26ed237aa671a196b19a1b54
[INFO] running `"docker" "start" "-a" "47272af7f33ea947b2a850e6335cdac56d8e63db26ed237aa671a196b19a1b54"`
[INFO] [stderr]    Compiling followermaze v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `"docker" "inspect" "47272af7f33ea947b2a850e6335cdac56d8e63db26ed237aa671a196b19a1b54"`
[INFO] running `"docker" "rm" "-f" "47272af7f33ea947b2a850e6335cdac56d8e63db26ed237aa671a196b19a1b54"`
[INFO] [stdout] 47272af7f33ea947b2a850e6335cdac56d8e63db26ed237aa671a196b19a1b54