[INFO] cloning repository https://github.com/sebohe/romodoro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sebohe/romodoro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebohe%2Fromodoro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebohe%2Fromodoro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74aa70b06a6cc62dec620aac6c46a25fe6199eae
[INFO] building sebohe/romodoro against master#a7f375789bab1a4e4a291c963081a8ca7d2b6bd7 for pr-93180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebohe%2Fromodoro" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sebohe/romodoro on toolchain a7f375789bab1a4e4a291c963081a8ca7d2b6bd7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sebohe/romodoro
[INFO] finished tweaking git repo https://github.com/sebohe/romodoro
[INFO] tweaked toml for git repo https://github.com/sebohe/romodoro written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sebohe/romodoro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9755d7153142d7a7269154e5870dac5c46747629d419d3db1f2006a1c1e8c5ed
[INFO] running `Command { std: "docker" "start" "-a" "9755d7153142d7a7269154e5870dac5c46747629d419d3db1f2006a1c1e8c5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9755d7153142d7a7269154e5870dac5c46747629d419d3db1f2006a1c1e8c5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9755d7153142d7a7269154e5870dac5c46747629d419d3db1f2006a1c1e8c5ed", kill_on_drop: false }`
[INFO] [stdout] 9755d7153142d7a7269154e5870dac5c46747629d419d3db1f2006a1c1e8c5ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34cb95b75b1550c634cc5a810a4e110416b9a22f2a12e94a62da26f47649e953
[INFO] running `Command { std: "docker" "start" "-a" "34cb95b75b1550c634cc5a810a4e110416b9a22f2a12e94a62da26f47649e953", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling syn v1.0.27
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling gdk-pixbuf v0.3.0
[INFO] [stderr]    Compiling cpal v0.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling claxon v0.4.2
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling gio-sys v0.5.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.5.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling libnotify-sys v1.0.2
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling ogg v0.7.0
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling slice-deque v0.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling lewton v0.9.4
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling minimp3 v0.3.5
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling glib v0.4.1
[INFO] [stderr]    Compiling addr2line v0.12.1
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling backtrace v0.3.48
[INFO] [stderr]    Compiling inotify v0.7.0
[INFO] [stderr]    Compiling serde-hjson v0.8.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling libnotify v1.0.3
[INFO] [stderr]    Compiling config v0.9.3
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling rodio v0.10.0
[INFO] [stderr]    Compiling romodoro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 fs::File::create(lock_file_path.clone());
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.59s
[INFO] running `Command { std: "docker" "inspect" "34cb95b75b1550c634cc5a810a4e110416b9a22f2a12e94a62da26f47649e953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34cb95b75b1550c634cc5a810a4e110416b9a22f2a12e94a62da26f47649e953", kill_on_drop: false }`
[INFO] [stdout] 34cb95b75b1550c634cc5a810a4e110416b9a22f2a12e94a62da26f47649e953
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c1aa70c76fb8841a0ddac399720e9eb208b65cabc8ab6aeba4a3e5deaa7205a
[INFO] running `Command { std: "docker" "start" "-a" "0c1aa70c76fb8841a0ddac399720e9eb208b65cabc8ab6aeba4a3e5deaa7205a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling romodoro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 fs::File::create(lock_file_path.clone());
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `Command { std: "docker" "inspect" "0c1aa70c76fb8841a0ddac399720e9eb208b65cabc8ab6aeba4a3e5deaa7205a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c1aa70c76fb8841a0ddac399720e9eb208b65cabc8ab6aeba4a3e5deaa7205a", kill_on_drop: false }`
[INFO] [stdout] 0c1aa70c76fb8841a0ddac399720e9eb208b65cabc8ab6aeba4a3e5deaa7205a