[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 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheyrict%2Fexhaust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/heyrict/exhaust on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-14/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de8677bc27d21dd894d23848ee2bc13ad2dd8c15ebc3dd34088fcf30bb10532a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "de8677bc27d21dd894d23848ee2bc13ad2dd8c15ebc3dd34088fcf30bb10532a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de8677bc27d21dd894d23848ee2bc13ad2dd8c15ebc3dd34088fcf30bb10532a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8677bc27d21dd894d23848ee2bc13ad2dd8c15ebc3dd34088fcf30bb10532a", kill_on_drop: false }`
[INFO] [stdout] de8677bc27d21dd894d23848ee2bc13ad2dd8c15ebc3dd34088fcf30bb10532a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6e376d0bb51aa5dc7e6f196b0a0cae2bf9738cf74d97c31669fce8a03592c52
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a6e376d0bb51aa5dc7e6f196b0a0cae2bf9738cf74d97c31669fce8a03592c52", kill_on_drop: false }`
[INFO] [stderr]    Compiling arc-swap v0.4.5
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling itertools v0.9.0
[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 libflate v0.1.27
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[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 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.27s
[INFO] running `Command { std: "docker" "inspect" "a6e376d0bb51aa5dc7e6f196b0a0cae2bf9738cf74d97c31669fce8a03592c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6e376d0bb51aa5dc7e6f196b0a0cae2bf9738cf74d97c31669fce8a03592c52", kill_on_drop: false }`
[INFO] [stdout] a6e376d0bb51aa5dc7e6f196b0a0cae2bf9738cf74d97c31669fce8a03592c52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ea9db8a76a4ec85fe5e006d9943c4b27e0464c5d9bcc54a6d4063fbd2f4042b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2ea9db8a76a4ec85fe5e006d9943c4b27e0464c5d9bcc54a6d4063fbd2f4042b", 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "2ea9db8a76a4ec85fe5e006d9943c4b27e0464c5d9bcc54a6d4063fbd2f4042b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ea9db8a76a4ec85fe5e006d9943c4b27e0464c5d9bcc54a6d4063fbd2f4042b", kill_on_drop: false }`
[INFO] [stdout] 2ea9db8a76a4ec85fe5e006d9943c4b27e0464c5d9bcc54a6d4063fbd2f4042b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 56feb7dbd9e90c3475191d2923f831005f91f584fcc9fa919b6200d0273d33dd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "56feb7dbd9e90c3475191d2923f831005f91f584fcc9fa919b6200d0273d33dd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: variant is never constructed: `Done`
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/app.rs:117:5
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 117 |     Done,
[INFO] [stdout] 
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/exhaust-de79ca086455efe1
[INFO] running `Command { std: "docker" "inspect" "56feb7dbd9e90c3475191d2923f831005f91f584fcc9fa919b6200d0273d33dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56feb7dbd9e90c3475191d2923f831005f91f584fcc9fa919b6200d0273d33dd", kill_on_drop: false }`
[INFO] [stdout] 56feb7dbd9e90c3475191d2923f831005f91f584fcc9fa919b6200d0273d33dd