[INFO] cloning repository https://github.com/Aloxaf/crc32fix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aloxaf/crc32fix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAloxaf%2Fcrc32fix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAloxaf%2Fcrc32fix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae6449d3d2fad105c9ab573346fe18e6b24675ae
[INFO] checking Aloxaf/crc32fix against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAloxaf%2Fcrc32fix" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Aloxaf/crc32fix on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Aloxaf/crc32fix
[INFO] finished tweaking git repo https://github.com/Aloxaf/crc32fix
[INFO] tweaked toml for git repo https://github.com/Aloxaf/crc32fix written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Aloxaf/crc32fix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.13.2
[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" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6194fb24322c0fabe23ef76809b701f0dc6140dcb2d7dbbbd36c0374b682c102
[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" "6194fb24322c0fabe23ef76809b701f0dc6140dcb2d7dbbbd36c0374b682c102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6194fb24322c0fabe23ef76809b701f0dc6140dcb2d7dbbbd36c0374b682c102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6194fb24322c0fabe23ef76809b701f0dc6140dcb2d7dbbbd36c0374b682c102", kill_on_drop: false }`
[INFO] [stdout] 6194fb24322c0fabe23ef76809b701f0dc6140dcb2d7dbbbd36c0374b682c102
[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" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50f8daaf5d182c1c8ae31a07f096adb1d9141d536900a59da9fa5600ca4b151b
[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" "50f8daaf5d182c1c8ae31a07f096adb1d9141d536900a59da9fa5600ca4b151b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.11
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking inflate v0.4.4
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking png v0.13.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking crc32fix v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.97s
[INFO] running `Command { std: "docker" "inspect" "50f8daaf5d182c1c8ae31a07f096adb1d9141d536900a59da9fa5600ca4b151b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50f8daaf5d182c1c8ae31a07f096adb1d9141d536900a59da9fa5600ca4b151b", kill_on_drop: false }`
[INFO] [stdout] 50f8daaf5d182c1c8ae31a07f096adb1d9141d536900a59da9fa5600ca4b151b