[INFO] cloning repository https://github.com/bfontaine/primo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bfontaine/primo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbfontaine%2Fprimo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbfontaine%2Fprimo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95090a242d3f406ee8b3fae86ece7b574f710e05
[INFO] checking bfontaine/primo against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbfontaine%2Fprimo" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bfontaine/primo on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bfontaine/primo
[INFO] finished tweaking git repo https://github.com/bfontaine/primo
[INFO] tweaked toml for git repo https://github.com/bfontaine/primo written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/bfontaine/primo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7151178eca18ba5e7f27a4243e69433b7fd0a6140bf23b40a27f238d885f77af
[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" "7151178eca18ba5e7f27a4243e69433b7fd0a6140bf23b40a27f238d885f77af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7151178eca18ba5e7f27a4243e69433b7fd0a6140bf23b40a27f238d885f77af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7151178eca18ba5e7f27a4243e69433b7fd0a6140bf23b40a27f238d885f77af", kill_on_drop: false }`
[INFO] [stdout] 7151178eca18ba5e7f27a4243e69433b7fd0a6140bf23b40a27f238d885f77af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97cae1dbdddbd2f8d51c5993a9ed6cfbb50fa61e2270f4bd59ca69e0e81289e7
[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" "97cae1dbdddbd2f8d51c5993a9ed6cfbb50fa61e2270f4bd59ca69e0e81289e7", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking unicode-segmentation v0.1.3
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking clap v2.19.3
[INFO] [stderr]     Checking primo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:35:79
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 Err(why) => panic!("Can't open '{}': {}", path.display(), why.description()),
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:35:79
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 Err(why) => panic!("Can't open '{}': {}", path.display(), why.description()),
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.49s
[INFO] running `Command { std: "docker" "inspect" "97cae1dbdddbd2f8d51c5993a9ed6cfbb50fa61e2270f4bd59ca69e0e81289e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97cae1dbdddbd2f8d51c5993a9ed6cfbb50fa61e2270f4bd59ca69e0e81289e7", kill_on_drop: false }`
[INFO] [stdout] 97cae1dbdddbd2f8d51c5993a9ed6cfbb50fa61e2270f4bd59ca69e0e81289e7