[INFO] fetching crate sway-alttab 1.1.2...
[INFO] testing sway-alttab-1.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate sway-alttab 1.1.2 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate sway-alttab 1.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sway-alttab 1.1.2
[INFO] finished tweaking crates.io crate sway-alttab 1.1.2
[INFO] tweaked toml for crates.io crate sway-alttab 1.1.2 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate crates.io crate sway-alttab 1.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook v0.1.12
[INFO] [stderr]   Downloaded swayipc v2.2.4
[INFO] [stderr]   Downloaded daemonize v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1cdbaf7f8e01f770be029c47f0dd94c873df57af2035748092149aa2c53e66c
[INFO] running `Command { std: "docker" "start" "-a" "f1cdbaf7f8e01f770be029c47f0dd94c873df57af2035748092149aa2c53e66c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1cdbaf7f8e01f770be029c47f0dd94c873df57af2035748092149aa2c53e66c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1cdbaf7f8e01f770be029c47f0dd94c873df57af2035748092149aa2c53e66c", kill_on_drop: false }`
[INFO] [stdout] f1cdbaf7f8e01f770be029c47f0dd94c873df57af2035748092149aa2c53e66c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62a888f74ccb1a8338ffffbd1a633524eb800a5808589ead36a1dad3ddc81514
[INFO] running `Command { std: "docker" "start" "-a" "62a888f74ccb1a8338ffffbd1a633524eb800a5808589ead36a1dad3ddc81514", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling arc-swap v0.4.4
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling boxfnonce v0.1.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling daemonize v0.4.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling signal-hook v0.1.12
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling swayipc v2.2.4
[INFO] [stderr]    Compiling sway-alttab v1.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.26s
[INFO] running `Command { std: "docker" "inspect" "62a888f74ccb1a8338ffffbd1a633524eb800a5808589ead36a1dad3ddc81514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62a888f74ccb1a8338ffffbd1a633524eb800a5808589ead36a1dad3ddc81514", kill_on_drop: false }`
[INFO] [stdout] 62a888f74ccb1a8338ffffbd1a633524eb800a5808589ead36a1dad3ddc81514
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bcd4fef1a8ae05ed32ef0f2f8197e65357e887000e5fb67bcdb7b8820633b71
[INFO] running `Command { std: "docker" "start" "-a" "4bcd4fef1a8ae05ed32ef0f2f8197e65357e887000e5fb67bcdb7b8820633b71", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sway-alttab v1.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "4bcd4fef1a8ae05ed32ef0f2f8197e65357e887000e5fb67bcdb7b8820633b71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bcd4fef1a8ae05ed32ef0f2f8197e65357e887000e5fb67bcdb7b8820633b71", kill_on_drop: false }`
[INFO] [stdout] 4bcd4fef1a8ae05ed32ef0f2f8197e65357e887000e5fb67bcdb7b8820633b71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 564d827db455a7719a1e17660705e7b5cbce3066af7ab44a352c5ee09542d8a3
[INFO] running `Command { std: "docker" "start" "-a" "564d827db455a7719a1e17660705e7b5cbce3066af7ab44a352c5ee09542d8a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sway_alttab-71e28b8f5399eb62)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "564d827db455a7719a1e17660705e7b5cbce3066af7ab44a352c5ee09542d8a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "564d827db455a7719a1e17660705e7b5cbce3066af7ab44a352c5ee09542d8a3", kill_on_drop: false }`
[INFO] [stdout] 564d827db455a7719a1e17660705e7b5cbce3066af7ab44a352c5ee09542d8a3