[INFO] updating cached repository wfraser/slowpty
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wfraser/slowpty
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wfraser/slowpty" "work/ex/beta-1.38-1/sources/1.37.0/gh/wfraser/slowpty"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wfraser/slowpty'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wfraser/slowpty" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wfraser/slowpty"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wfraser/slowpty'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 135913e57258424334f0347c1553abfa5a410659
[INFO] sha for GitHub repo wfraser/slowpty: 135913e57258424334f0347c1553abfa5a410659
[INFO] validating manifest of wfraser/slowpty on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wfraser/slowpty on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wfraser/slowpty
[INFO] finished frobbing wfraser/slowpty
[INFO] frobbed toml for wfraser/slowpty written to work/ex/beta-1.38-1/sources/1.37.0/gh/wfraser/slowpty/Cargo.toml
[INFO] started frobbing wfraser/slowpty
[INFO] finished frobbing wfraser/slowpty
[INFO] frobbed toml for wfraser/slowpty written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wfraser/slowpty/Cargo.toml
[INFO] crate wfraser/slowpty already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing wfraser/slowpty against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wfraser/slowpty:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e9f9b437127bba73d819106c9bca574e0b62332552020ae0b50a46d9d08d4ffd
[INFO] running `"docker" "start" "-a" "e9f9b437127bba73d819106c9bca574e0b62332552020ae0b50a46d9d08d4ffd"`
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling errno v0.2.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling exec v0.3.1
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling slowpty v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:216:13
[INFO] [stderr]     |
[INFO] [stderr] 216 |     for (i, mut f) in [&mut console, &mut pty_master].iter_mut().enumerate() {
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.68s
[INFO] running `"docker" "inspect" "e9f9b437127bba73d819106c9bca574e0b62332552020ae0b50a46d9d08d4ffd"`
[INFO] running `"docker" "rm" "-f" "e9f9b437127bba73d819106c9bca574e0b62332552020ae0b50a46d9d08d4ffd"`
[INFO] [stdout] e9f9b437127bba73d819106c9bca574e0b62332552020ae0b50a46d9d08d4ffd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wfraser/slowpty:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 415771a751d34576c9fe48beaae0e5470a3ac08eb9a35ba7ebcdb5ad70fe3d1e
[INFO] running `"docker" "start" "-a" "415771a751d34576c9fe48beaae0e5470a3ac08eb9a35ba7ebcdb5ad70fe3d1e"`
[INFO] [stderr]    Compiling slowpty v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:216:13
[INFO] [stderr]     |
[INFO] [stderr] 216 |     for (i, mut f) in [&mut console, &mut pty_master].iter_mut().enumerate() {
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "415771a751d34576c9fe48beaae0e5470a3ac08eb9a35ba7ebcdb5ad70fe3d1e"`
[INFO] running `"docker" "rm" "-f" "415771a751d34576c9fe48beaae0e5470a3ac08eb9a35ba7ebcdb5ad70fe3d1e"`
[INFO] [stdout] 415771a751d34576c9fe48beaae0e5470a3ac08eb9a35ba7ebcdb5ad70fe3d1e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wfraser/slowpty:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 6f7e2d56a11147b9fb93bb487b10d5e4f98f7e2dcd5ab86e503f770cb97fd9dc
[INFO] running `"docker" "start" "-a" "6f7e2d56a11147b9fb93bb487b10d5e4f98f7e2dcd5ab86e503f770cb97fd9dc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slowpty-fb0dffa7393b8ace
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_signal_name ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6f7e2d56a11147b9fb93bb487b10d5e4f98f7e2dcd5ab86e503f770cb97fd9dc"`
[INFO] running `"docker" "rm" "-f" "6f7e2d56a11147b9fb93bb487b10d5e4f98f7e2dcd5ab86e503f770cb97fd9dc"`
[INFO] [stdout] 6f7e2d56a11147b9fb93bb487b10d5e4f98f7e2dcd5ab86e503f770cb97fd9dc