[INFO] fetching crate boba 4.2.0...
[INFO] checking boba-4.2.0 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate boba 4.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate boba 4.2.0 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate boba 4.2.0
[INFO] finished tweaking crates.io crate boba 4.2.0
[INFO] tweaked toml for crates.io crate boba 4.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", 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] 2ec042c0f662ff8b4a2bbf82ee9cf122e6e5d6b83d1d9a68b35602449d2d0aaa
[INFO] running `Command { std: "docker" "start" "-a" "2ec042c0f662ff8b4a2bbf82ee9cf122e6e5d6b83d1d9a68b35602449d2d0aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ec042c0f662ff8b4a2bbf82ee9cf122e6e5d6b83d1d9a68b35602449d2d0aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec042c0f662ff8b4a2bbf82ee9cf122e6e5d6b83d1d9a68b35602449d2d0aaa", kill_on_drop: false }`
[INFO] [stdout] 2ec042c0f662ff8b4a2bbf82ee9cf122e6e5d6b83d1d9a68b35602449d2d0aaa
[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" "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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] ae971ca4f7f8ec132481dfdcd8651bc93700deea9ca671b7524f212454691b7f
[INFO] running `Command { std: "docker" "start" "-a" "ae971ca4f7f8ec132481dfdcd8651bc93700deea9ca671b7524f212454691b7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking bubblebabble v0.1.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking proc-macro2 v1.0.27
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking boba v4.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking version-sync v0.9.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.66s
[INFO] running `Command { std: "docker" "inspect" "ae971ca4f7f8ec132481dfdcd8651bc93700deea9ca671b7524f212454691b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae971ca4f7f8ec132481dfdcd8651bc93700deea9ca671b7524f212454691b7f", kill_on_drop: false }`
[INFO] [stdout] ae971ca4f7f8ec132481dfdcd8651bc93700deea9ca671b7524f212454691b7f