[INFO] fetching crate forget 1.5.0...
[INFO] checking forget-1.5.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate forget 1.5.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate forget 1.5.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forget 1.5.0
[INFO] finished tweaking crates.io crate forget 1.5.0
[INFO] tweaked toml for crates.io crate forget 1.5.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate forget 1.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cassowary v0.3.0
[INFO] [stderr]   Downloaded tui v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7aca396292f924729582558a82a0a9241d6e33f1710b51d048d0eb39a98589e4
[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" "7aca396292f924729582558a82a0a9241d6e33f1710b51d048d0eb39a98589e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aca396292f924729582558a82a0a9241d6e33f1710b51d048d0eb39a98589e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aca396292f924729582558a82a0a9241d6e33f1710b51d048d0eb39a98589e4", kill_on_drop: false }`
[INFO] [stdout] 7aca396292f924729582558a82a0a9241d6e33f1710b51d048d0eb39a98589e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 232a628a66bf912bbe6e47401ccaaa1fa65a536d8fcfa589e3b358c1a4c1b0c7
[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" "232a628a66bf912bbe6e47401ccaaa1fa65a536d8fcfa589e3b358c1a4c1b0c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking tui v0.8.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking backtrace v0.3.44
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking forget v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.88s
[INFO] running `Command { std: "docker" "inspect" "232a628a66bf912bbe6e47401ccaaa1fa65a536d8fcfa589e3b358c1a4c1b0c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232a628a66bf912bbe6e47401ccaaa1fa65a536d8fcfa589e3b358c1a4c1b0c7", kill_on_drop: false }`
[INFO] [stdout] 232a628a66bf912bbe6e47401ccaaa1fa65a536d8fcfa589e3b358c1a4c1b0c7