[INFO] cloning repository https://github.com/marc2332/ghboard
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marc2332/ghboard" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarc2332%2Fghboard", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarc2332%2Fghboard'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d67263afc0479bdbf1d0918c52d4cf484dd650ef
[INFO] checking marc2332/ghboard against try#54cf65b8d066c082e536455049b95943cf30378f for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarc2332%2Fghboard" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/marc2332/ghboard
[INFO] finished tweaking git repo https://github.com/marc2332/ghboard
[INFO] tweaked toml for git repo https://github.com/marc2332/ghboard written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/marc2332/ghboard on toolchain 54cf65b8d066c082e536455049b95943cf30378f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/marc2332/ghboard already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 002a092e11cf5de729c4faa701fc1a3fa4e86d079701f3cc26337e873a0b2e82
[INFO] running `Command { std: "docker" "start" "-a" "002a092e11cf5de729c4faa701fc1a3fa4e86d079701f3cc26337e873a0b2e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "002a092e11cf5de729c4faa701fc1a3fa4e86d079701f3cc26337e873a0b2e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "002a092e11cf5de729c4faa701fc1a3fa4e86d079701f3cc26337e873a0b2e82", kill_on_drop: false }`
[INFO] [stdout] 002a092e11cf5de729c4faa701fc1a3fa4e86d079701f3cc26337e873a0b2e82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75d1fcd22d44a645ffebe13985fa4c29085bcd380d6669447e127a83cfaaad9f
[INFO] running `Command { std: "docker" "start" "-a" "75d1fcd22d44a645ffebe13985fa4c29085bcd380d6669447e127a83cfaaad9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling cc v1.2.30
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling smallbox v0.8.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bumpalo v3.19.0
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]     Checking writeable v0.6.1
[INFO] [stderr]     Checking litemap v0.8.0
[INFO] [stderr]     Checking bumpslab v0.2.0
[INFO] [stdout] error: not automatically applying `DerefMut` through union field to target that might have `Drop` glue
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bumpslab-0.2.0/src/lib.rs:89:24
[INFO] [stdout]    |
[INFO] [stdout] 89 |         unsafe { &mut *self.value.get_mut() }
[INFO] [stdout]    |                        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: writing to this reference calls the destructor for the old value
[INFO] [stdout]    = help: add an explicit `*` if that is desired, or call `ptr::write` to not run the destructor
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bumpslab` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "75d1fcd22d44a645ffebe13985fa4c29085bcd380d6669447e127a83cfaaad9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75d1fcd22d44a645ffebe13985fa4c29085bcd380d6669447e127a83cfaaad9f", kill_on_drop: false }`
[INFO] [stdout] 75d1fcd22d44a645ffebe13985fa4c29085bcd380d6669447e127a83cfaaad9f