[INFO] cloning repository https://github.com/corndog/pe11_20
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/corndog/pe11_20" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorndog%2Fpe11_20", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorndog%2Fpe11_20'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4171255bdb0b927a544c9c82eb0b0a9db5e509d2
[INFO] testing corndog/pe11_20 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorndog%2Fpe11_20" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/corndog/pe11_20 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/corndog/pe11_20
[INFO] finished tweaking git repo https://github.com/corndog/pe11_20
[INFO] tweaked toml for git repo https://github.com/corndog/pe11_20 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/corndog/pe11_20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4745a6e833d5d86d58ea0329d9ec12ad76f6714e97c32dfd48ca27d4c6f5ed1f
[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" "4745a6e833d5d86d58ea0329d9ec12ad76f6714e97c32dfd48ca27d4c6f5ed1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4745a6e833d5d86d58ea0329d9ec12ad76f6714e97c32dfd48ca27d4c6f5ed1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4745a6e833d5d86d58ea0329d9ec12ad76f6714e97c32dfd48ca27d4c6f5ed1f", kill_on_drop: false }`
[INFO] [stdout] 4745a6e833d5d86d58ea0329d9ec12ad76f6714e97c32dfd48ca27d4c6f5ed1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd952c846c5041ccf5f992482268ef358eb71e99cbd63db4ada0786fbe471587
[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" "bd952c846c5041ccf5f992482268ef358eb71e99cbd63db4ada0786fbe471587", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling libc v0.2.29
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling num-bigint v0.1.40
[INFO] [stderr]    Compiling num-complex v0.1.40
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling pe2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sw`
[INFO] [stdout]    --> src/main.rs:358:9
[INFO] [stdout]     |
[INFO] [stdout] 358 |     let sw = Stopwatch::start_new();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_sw`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` 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 11.03s
[INFO] running `Command { std: "docker" "inspect" "bd952c846c5041ccf5f992482268ef358eb71e99cbd63db4ada0786fbe471587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd952c846c5041ccf5f992482268ef358eb71e99cbd63db4ada0786fbe471587", kill_on_drop: false }`
[INFO] [stdout] bd952c846c5041ccf5f992482268ef358eb71e99cbd63db4ada0786fbe471587
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2640fd73529f728ade98a6ef34e05dfa937709caa3b204483d2e466e68dae701
[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" "2640fd73529f728ade98a6ef34e05dfa937709caa3b204483d2e466e68dae701", kill_on_drop: false }`
[INFO] [stderr]    Compiling pe2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sw`
[INFO] [stdout]    --> src/main.rs:358:9
[INFO] [stdout]     |
[INFO] [stdout] 358 |     let sw = Stopwatch::start_new();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_sw`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2640fd73529f728ade98a6ef34e05dfa937709caa3b204483d2e466e68dae701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2640fd73529f728ade98a6ef34e05dfa937709caa3b204483d2e466e68dae701", kill_on_drop: false }`
[INFO] [stdout] 2640fd73529f728ade98a6ef34e05dfa937709caa3b204483d2e466e68dae701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", 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] d7c2d2f6254b310be4de702070cef9476debf1999f77a793b3915beffd819881
[INFO] running `Command { std: "docker" "start" "-a" "d7c2d2f6254b310be4de702070cef9476debf1999f77a793b3915beffd819881", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `sw`
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/main.rs:358:9
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 358 |     let sw = Stopwatch::start_new();
[INFO] [stdout] 
[INFO] [stderr]     |         ^^ help: if this is intentional, prefix it with an underscore: `_sw`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pe2-1cd619ba4dc2e001)
[INFO] running `Command { std: "docker" "inspect" "d7c2d2f6254b310be4de702070cef9476debf1999f77a793b3915beffd819881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7c2d2f6254b310be4de702070cef9476debf1999f77a793b3915beffd819881", kill_on_drop: false }`
[INFO] [stdout] d7c2d2f6254b310be4de702070cef9476debf1999f77a793b3915beffd819881