[INFO] fetching crate easy-error 0.3.1...
[INFO] checking easy-error-0.3.1 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate easy-error 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate easy-error 0.3.1 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate easy-error 0.3.1
[INFO] finished tweaking crates.io crate easy-error 0.3.1
[INFO] tweaked toml for crates.io crate easy-error 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate easy-error 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c7cd14e46e94f367af0afb7ad2e43dba3b4980f13d97e6d6b3b6598d38426c3
[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" "3c7cd14e46e94f367af0afb7ad2e43dba3b4980f13d97e6d6b3b6598d38426c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c7cd14e46e94f367af0afb7ad2e43dba3b4980f13d97e6d6b3b6598d38426c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c7cd14e46e94f367af0afb7ad2e43dba3b4980f13d97e6d6b3b6598d38426c3", kill_on_drop: false }`
[INFO] [stdout] 3c7cd14e46e94f367af0afb7ad2e43dba3b4980f13d97e6d6b3b6598d38426c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 091f8ad248ad531ea43b02eb06ac3ef7703c0bd713520cd15515b676a0af0cdb
[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" "091f8ad248ad531ea43b02eb06ac3ef7703c0bd713520cd15515b676a0af0cdb", kill_on_drop: false }`
[INFO] [stderr]     Checking easy-error v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "091f8ad248ad531ea43b02eb06ac3ef7703c0bd713520cd15515b676a0af0cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091f8ad248ad531ea43b02eb06ac3ef7703c0bd713520cd15515b676a0af0cdb", kill_on_drop: false }`
[INFO] [stdout] 091f8ad248ad531ea43b02eb06ac3ef7703c0bd713520cd15515b676a0af0cdb