[INFO] cloning repository https://github.com/mannerism/rustIntro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mannerism/rustIntro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmannerism%2FrustIntro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmannerism%2FrustIntro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89aad92614ef1cca1b79e42253947128c6d681c5
[INFO] testing mannerism/rustIntro against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmannerism%2FrustIntro" "/workspace/builds/worker-19/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mannerism/rustIntro on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mannerism/rustIntro
[INFO] finished tweaking git repo https://github.com/mannerism/rustIntro
[INFO] tweaked toml for git repo https://github.com/mannerism/rustIntro written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate git repo https://github.com/mannerism/rustIntro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--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-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c51f4b580b130f8c9e85e7c2fc32c902865f24c0649a9f621473de97ea88265b
[INFO] running `Command { std: "docker" "start" "-a" "c51f4b580b130f8c9e85e7c2fc32c902865f24c0649a9f621473de97ea88265b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c51f4b580b130f8c9e85e7c2fc32c902865f24c0649a9f621473de97ea88265b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c51f4b580b130f8c9e85e7c2fc32c902865f24c0649a9f621473de97ea88265b", kill_on_drop: false }`
[INFO] [stdout] c51f4b580b130f8c9e85e7c2fc32c902865f24c0649a9f621473de97ea88265b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c107f97e0f8662146a0407d3ed9e3094f80ec09d09b79edd8bef6861dfa0c302
[INFO] running `Command { std: "docker" "start" "-a" "c107f97e0f8662146a0407d3ed9e3094f80ec09d09b79edd8bef6861dfa0c302", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]  --> src/struct_ownership.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   a: i32,
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]  --> src/struct_ownership.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   b: f64,
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.84s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c107f97e0f8662146a0407d3ed9e3094f80ec09d09b79edd8bef6861dfa0c302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c107f97e0f8662146a0407d3ed9e3094f80ec09d09b79edd8bef6861dfa0c302", kill_on_drop: false }`
[INFO] [stdout] c107f97e0f8662146a0407d3ed9e3094f80ec09d09b79edd8bef6861dfa0c302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfec3a589e826d7b6dbbd6cbac4ba6f96c2e0f754ca78da549bdc0114454c3c4
[INFO] running `Command { std: "docker" "start" "-a" "cfec3a589e826d7b6dbbd6cbac4ba6f96c2e0f754ca78da549bdc0114454c3c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]  --> src/struct_ownership.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   a: i32,
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]  --> src/struct_ownership.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   b: f64,
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "cfec3a589e826d7b6dbbd6cbac4ba6f96c2e0f754ca78da549bdc0114454c3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfec3a589e826d7b6dbbd6cbac4ba6f96c2e0f754ca78da549bdc0114454c3c4", kill_on_drop: false }`
[INFO] [stdout] cfec3a589e826d7b6dbbd6cbac4ba6f96c2e0f754ca78da549bdc0114454c3c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 241f9441de288c34ebdd48b1f248362428a63393d0c35a2ed6872c16c92cd886
[INFO] running `Command { std: "docker" "start" "-a" "241f9441de288c34ebdd48b1f248362428a63393d0c35a2ed6872c16c92cd886", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]  --> src/struct_ownership.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   a: i32,
[INFO] [stderr]   |   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]  --> src/struct_ownership.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   b: f64,
[INFO] [stderr]   |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_sandbox` (bin "rust_sandbox" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.28s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_sandbox-5dc7146e9d6b4d76)
[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" "241f9441de288c34ebdd48b1f248362428a63393d0c35a2ed6872c16c92cd886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "241f9441de288c34ebdd48b1f248362428a63393d0c35a2ed6872c16c92cd886", kill_on_drop: false }`
[INFO] [stdout] 241f9441de288c34ebdd48b1f248362428a63393d0c35a2ed6872c16c92cd886