[INFO] updating cached repository https://github.com/zyphrus/bf-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d61a8132b1c67cdcfab582f2f57d41ca5e428e02
[INFO] checking zyphrus/bf-rs against try#22dd2dd1dc07f63ae9394352d412f020d2985684 for pr-74627
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyphrus%2Fbf-rs" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zyphrus/bf-rs on toolchain 22dd2dd1dc07f63ae9394352d412f020d2985684
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zyphrus/bf-rs
[INFO] finished tweaking git repo https://github.com/zyphrus/bf-rs
[INFO] tweaked toml for git repo https://github.com/zyphrus/bf-rs written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/zyphrus/bf-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c0fc6db39d163b856ff290c309d49dfe81e3e1f4a2488a616fc418c56d1c223
[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" "0c0fc6db39d163b856ff290c309d49dfe81e3e1f4a2488a616fc418c56d1c223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c0fc6db39d163b856ff290c309d49dfe81e3e1f4a2488a616fc418c56d1c223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c0fc6db39d163b856ff290c309d49dfe81e3e1f4a2488a616fc418c56d1c223", kill_on_drop: false }`
[INFO] [stdout] 0c0fc6db39d163b856ff290c309d49dfe81e3e1f4a2488a616fc418c56d1c223
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2aa274065881e67c5f642ea321a8e9ad33c6058ec00121b392d60ca61b20d9e7
[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" "2aa274065881e67c5f642ea321a8e9ad33c6058ec00121b392d60ca61b20d9e7", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking strsim v0.4.1
[INFO] [stderr]     Checking ansi_term v0.7.5
[INFO] [stderr]     Checking vec_map v0.4.0
[INFO] [stderr]     Checking clap v1.5.6
[INFO] [stderr]     Checking bf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::Symbol::*`
[INFO] [stdout]    --> src/lib.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |     use super::Symbol::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` 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 5.08s
[INFO] running `Command { std: "docker" "inspect" "2aa274065881e67c5f642ea321a8e9ad33c6058ec00121b392d60ca61b20d9e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aa274065881e67c5f642ea321a8e9ad33c6058ec00121b392d60ca61b20d9e7", kill_on_drop: false }`
[INFO] [stdout] 2aa274065881e67c5f642ea321a8e9ad33c6058ec00121b392d60ca61b20d9e7