[INFO] fetching crate alter-ego 0.3.0...
[INFO] checking alter-ego-0.3.0 against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] extracting crate alter-ego 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate alter-ego 0.3.0 on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alter-ego 0.3.0
[INFO] finished tweaking crates.io crate alter-ego 0.3.0
[INFO] tweaked toml for crates.io crate alter-ego 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate alter-ego 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-error v0.2.1
[INFO] [stderr]   Downloaded which v3.1.0
[INFO] [stderr]   Downloaded posix-acl v0.3.0
[INFO] [stderr]   Downloaded acl-sys v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ab8d8a549e9252348dab240360ff9d63f63a1e683c18a33bf96911541cd3270
[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" "2ab8d8a549e9252348dab240360ff9d63f63a1e683c18a33bf96911541cd3270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ab8d8a549e9252348dab240360ff9d63f63a1e683c18a33bf96911541cd3270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ab8d8a549e9252348dab240360ff9d63f63a1e683c18a33bf96911541cd3270", kill_on_drop: false }`
[INFO] [stdout] 2ab8d8a549e9252348dab240360ff9d63f63a1e683c18a33bf96911541cd3270
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65e6c07c146a20d3bba3b8cb78b38d0d60609384c7ca83e78d255c0f6ca36fb7
[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" "65e6c07c146a20d3bba3b8cb78b38d0d60609384c7ca83e78d255c0f6ca36fb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking simple-error v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking acl-sys v1.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking which v3.1.0
[INFO] [stderr]     Checking users v0.9.1
[INFO] [stderr]     Checking posix-acl v0.3.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking alter-ego v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.55s
[INFO] running `Command { std: "docker" "inspect" "65e6c07c146a20d3bba3b8cb78b38d0d60609384c7ca83e78d255c0f6ca36fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65e6c07c146a20d3bba3b8cb78b38d0d60609384c7ca83e78d255c0f6ca36fb7", kill_on_drop: false }`
[INFO] [stdout] 65e6c07c146a20d3bba3b8cb78b38d0d60609384c7ca83e78d255c0f6ca36fb7