[INFO] fetching crate mozrunner 0.12.1...
[INFO] checking mozrunner-0.12.1 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate mozrunner 0.12.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mozrunner 0.12.1 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mozrunner 0.12.1
[INFO] finished tweaking crates.io crate mozrunner 0.12.1
[INFO] tweaked toml for crates.io crate mozrunner 0.12.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate mozrunner 0.12.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blake2b_simd v0.5.11
[INFO] [stderr]   Downloaded getrandom v0.1.16
[INFO] [stderr]   Downloaded winreg v0.5.1
[INFO] [stderr]   Downloaded arrayvec v0.5.2
[INFO] [stderr]   Downloaded dirs-sys v0.3.5
[INFO] [stderr]   Downloaded num-integer v0.1.44
[INFO] [stderr]   Downloaded base64 v0.13.0
[INFO] [stderr]   Downloaded arrayref v0.3.6
[INFO] [stderr]   Downloaded constant_time_eq v0.1.5
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded redox_users v0.3.5
[INFO] [stderr]   Downloaded getrandom v0.2.1
[INFO] [stderr]   Downloaded plist v0.5.5
[INFO] [stderr]   Downloaded rand v0.8.2
[INFO] [stderr]   Downloaded serde v1.0.119
[INFO] [stderr]   Downloaded dirs v2.0.2
[INFO] [stderr]   Downloaded xml-rs v0.8.3
[INFO] [stderr]   Downloaded wasi v0.10.1+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded rust-argon2 v0.8.3
[INFO] [stderr]   Downloaded mozprofile v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9effd738c76f18722ea9d31da3bb1b2db133f85c10616b4d46fecc527a9158b9
[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" "9effd738c76f18722ea9d31da3bb1b2db133f85c10616b4d46fecc527a9158b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9effd738c76f18722ea9d31da3bb1b2db133f85c10616b4d46fecc527a9158b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9effd738c76f18722ea9d31da3bb1b2db133f85c10616b4d46fecc527a9158b9", kill_on_drop: false }`
[INFO] [stdout] 9effd738c76f18722ea9d31da3bb1b2db133f85c10616b4d46fecc527a9158b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3be3d486ed09274867186ed01dc538472ea0f75418e1869c855ff7ebede02c79
[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" "3be3d486ed09274867186ed01dc538472ea0f75418e1869c855ff7ebede02c79", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking log v0.4.13
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking mozprofile v0.7.1
[INFO] [stderr]     Checking plist v0.5.5
[INFO] [stderr]     Checking mozrunner v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.52s
[INFO] running `Command { std: "docker" "inspect" "3be3d486ed09274867186ed01dc538472ea0f75418e1869c855ff7ebede02c79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3be3d486ed09274867186ed01dc538472ea0f75418e1869c855ff7ebede02c79", kill_on_drop: false }`
[INFO] [stdout] 3be3d486ed09274867186ed01dc538472ea0f75418e1869c855ff7ebede02c79