[INFO] cloning repository https://github.com/heyrict/exhaust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/heyrict/exhaust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheyrict%2Fexhaust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheyrict%2Fexhaust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa78b5073c65df039075bc8773756a3980fb3ec4
[INFO] testing heyrict/exhaust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheyrict%2Fexhaust" "/workspace/builds/worker-54/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-54/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/heyrict/exhaust 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 git repo https://github.com/heyrict/exhaust
[INFO] finished tweaking git repo https://github.com/heyrict/exhaust
[INFO] tweaked toml for git repo https://github.com/heyrict/exhaust written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] crate git repo https://github.com/heyrict/exhaust 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]     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-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] bf234deffe828c97791dbd9fb8f982ba9aa77aacd9d595890d4e38ad45edd9d4
[INFO] running `Command { std: "docker" "start" "-a" "bf234deffe828c97791dbd9fb8f982ba9aa77aacd9d595890d4e38ad45edd9d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf234deffe828c97791dbd9fb8f982ba9aa77aacd9d595890d4e38ad45edd9d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf234deffe828c97791dbd9fb8f982ba9aa77aacd9d595890d4e38ad45edd9d4", kill_on_drop: false }`
[INFO] [stdout] bf234deffe828c97791dbd9fb8f982ba9aa77aacd9d595890d4e38ad45edd9d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] d2b8e7a6e37ce12d38b9c33434116acd68b984dee60140ac1c204ed070e01eb0
[INFO] running `Command { std: "docker" "start" "-a" "d2b8e7a6e37ce12d38b9c33434116acd68b984dee60140ac1c204ed070e01eb0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling arc-swap v0.4.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling libflate v0.1.27
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]    Compiling signal-hook v0.1.13
[INFO] [stderr]    Compiling crossterm v0.17.3
[INFO] [stderr]    Compiling crossterm v0.16.0
[INFO] [stderr]    Compiling tui v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling exhaust v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Done`
[INFO] [stdout]    --> src/app.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     Done,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/macros.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/app.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 | /             &self.current_path.parent().map(|parent_dir| {
[INFO] [stdout] 206 | |                 paths.insert(0, parent_dir.into());
[INFO] [stdout] 207 | |             });
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `Command { std: "docker" "inspect" "d2b8e7a6e37ce12d38b9c33434116acd68b984dee60140ac1c204ed070e01eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2b8e7a6e37ce12d38b9c33434116acd68b984dee60140ac1c204ed070e01eb0", kill_on_drop: false }`
[INFO] [stdout] d2b8e7a6e37ce12d38b9c33434116acd68b984dee60140ac1c204ed070e01eb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 89c72fd880e7feaa12c12e7558fed7e8adc43592a0a3264c5eca64c39b0e705b
[INFO] running `Command { std: "docker" "start" "-a" "89c72fd880e7feaa12c12e7558fed7e8adc43592a0a3264c5eca64c39b0e705b", kill_on_drop: false }`
[INFO] [stderr]    Compiling exhaust v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Done`
[INFO] [stdout]    --> src/app.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     Done,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/macros.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/app.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 | /             &self.current_path.parent().map(|parent_dir| {
[INFO] [stdout] 206 | |                 paths.insert(0, parent_dir.into());
[INFO] [stdout] 207 | |             });
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "89c72fd880e7feaa12c12e7558fed7e8adc43592a0a3264c5eca64c39b0e705b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c72fd880e7feaa12c12e7558fed7e8adc43592a0a3264c5eca64c39b0e705b", kill_on_drop: false }`
[INFO] [stdout] 89c72fd880e7feaa12c12e7558fed7e8adc43592a0a3264c5eca64c39b0e705b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 3ff08d49ae89540e60ecb3c3e90c46c3f0728844d2ba2c4687e2f1bf684ea40d
[INFO] running `Command { std: "docker" "start" "-a" "3ff08d49ae89540e60ecb3c3e90c46c3f0728844d2ba2c4687e2f1bf684ea40d", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Done`
[INFO] [stderr]    --> src/app.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     Done,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/macros.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/app.rs:205:13
[INFO] [stderr]     |
[INFO] [stderr] 205 | /             &self.current_path.parent().map(|parent_dir| {
[INFO] [stderr] 206 | |                 paths.insert(0, parent_dir.into());
[INFO] [stderr] 207 | |             });
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `exhaust` (bin "exhaust" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/exhaust-aaa166a291a1c991)
[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" "3ff08d49ae89540e60ecb3c3e90c46c3f0728844d2ba2c4687e2f1bf684ea40d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ff08d49ae89540e60ecb3c3e90c46c3f0728844d2ba2c4687e2f1bf684ea40d", kill_on_drop: false }`
[INFO] [stdout] 3ff08d49ae89540e60ecb3c3e90c46c3f0728844d2ba2c4687e2f1bf684ea40d