[INFO] fetching crate salak 0.8.0...
[INFO] checking salak-0.8.0 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate salak 0.8.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate salak 0.8.0 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate salak 0.8.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate salak 0.8.0
[INFO] tweaked toml for crates.io crate salak 0.8.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate salak 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck_macros v1.0.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.22
[INFO] [stderr]   Downloaded quickcheck v1.0.3
[INFO] [stderr]   Downloaded libc v0.2.86
[INFO] [stderr]   Downloaded regex v1.4.3
[INFO] [stderr]   Downloaded serde v1.0.123
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded syn v1.0.60
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f06a1b8df88809eb59616a54a3d59d6ef4001b9d523c3009e62064a3583d7219
[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" "f06a1b8df88809eb59616a54a3d59d6ef4001b9d523c3009e62064a3583d7219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f06a1b8df88809eb59616a54a3d59d6ef4001b9d523c3009e62064a3583d7219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f06a1b8df88809eb59616a54a3d59d6ef4001b9d523c3009e62064a3583d7219", kill_on_drop: false }`
[INFO] [stdout] f06a1b8df88809eb59616a54a3d59d6ef4001b9d523c3009e62064a3583d7219
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3b27243fa1ac2890a6e616d6fd4dd2bd99c297d67b64d053b7f1fe46f362a7f
[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" "b3b27243fa1ac2890a6e616d6fd4dd2bd99c297d67b64d053b7f1fe46f362a7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling salak_derive v0.3.0
[INFO] [stderr]    Compiling quickcheck_macros v1.0.0
[INFO] [stderr]     Checking salak v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.20s
[INFO] running `Command { std: "docker" "inspect" "b3b27243fa1ac2890a6e616d6fd4dd2bd99c297d67b64d053b7f1fe46f362a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3b27243fa1ac2890a6e616d6fd4dd2bd99c297d67b64d053b7f1fe46f362a7f", kill_on_drop: false }`
[INFO] [stdout] b3b27243fa1ac2890a6e616d6fd4dd2bd99c297d67b64d053b7f1fe46f362a7f