[INFO] cloning repository https://github.com/hwchen/melt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hwchen/melt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwchen%2Fmelt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwchen%2Fmelt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25c234d0cef2861db70f9d5473f73e745e7f1c45
[INFO] testing hwchen/melt against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwchen%2Fmelt" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hwchen/melt on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hwchen/melt
[INFO] finished tweaking git repo https://github.com/hwchen/melt
[INFO] tweaked toml for git repo https://github.com/hwchen/melt written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/hwchen/melt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.85
[INFO] [stderr]   Downloaded memchr v2.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e7a3571002ce05e9bf556be7dd3af3df1d49d42765a9b31dc57cdad414b02aad
[INFO] running `Command { std: "docker" "start" "-a" "e7a3571002ce05e9bf556be7dd3af3df1d49d42765a9b31dc57cdad414b02aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7a3571002ce05e9bf556be7dd3af3df1d49d42765a9b31dc57cdad414b02aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a3571002ce05e9bf556be7dd3af3df1d49d42765a9b31dc57cdad414b02aad", kill_on_drop: false }`
[INFO] [stdout] e7a3571002ce05e9bf556be7dd3af3df1d49d42765a9b31dc57cdad414b02aad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b598e10078f7f7d140e9c7f3a0958272e0aadcb4f846e7b4f4e7265c9134dd8e
[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" "b598e10078f7f7d140e9c7f3a0958272e0aadcb4f846e7b4f4e7265c9134dd8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling serde v1.0.85
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling structopt v0.2.14
[INFO] [stderr]    Compiling melt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.01s
[INFO] running `Command { std: "docker" "inspect" "b598e10078f7f7d140e9c7f3a0958272e0aadcb4f846e7b4f4e7265c9134dd8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b598e10078f7f7d140e9c7f3a0958272e0aadcb4f846e7b4f4e7265c9134dd8e", kill_on_drop: false }`
[INFO] [stdout] b598e10078f7f7d140e9c7f3a0958272e0aadcb4f846e7b4f4e7265c9134dd8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5d0a31956e79c09ccc3872474bfb2804477d9390e10f97f6da26ce4bf41a64c
[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" "c5d0a31956e79c09ccc3872474bfb2804477d9390e10f97f6da26ce4bf41a64c", kill_on_drop: false }`
[INFO] [stderr]    Compiling melt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "c5d0a31956e79c09ccc3872474bfb2804477d9390e10f97f6da26ce4bf41a64c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d0a31956e79c09ccc3872474bfb2804477d9390e10f97f6da26ce4bf41a64c", kill_on_drop: false }`
[INFO] [stdout] c5d0a31956e79c09ccc3872474bfb2804477d9390e10f97f6da26ce4bf41a64c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] adc969e054d429d60fc0a88333edfb104538fdb0549857c7d6ad4c2dfb881de0
[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" "adc969e054d429d60fc0a88333edfb104538fdb0549857c7d6ad4c2dfb881de0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/melt-81370663b4de788d
[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" "adc969e054d429d60fc0a88333edfb104538fdb0549857c7d6ad4c2dfb881de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adc969e054d429d60fc0a88333edfb104538fdb0549857c7d6ad4c2dfb881de0", kill_on_drop: false }`
[INFO] [stdout] adc969e054d429d60fc0a88333edfb104538fdb0549857c7d6ad4c2dfb881de0