[INFO] cloning repository https://github.com/testDrive64/try-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/testDrive64/try-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtestDrive64%2Ftry-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtestDrive64%2Ftry-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 70f22c9f2c0935e343c402f9f98340e9f4bccdf7
[INFO] checking testDrive64/try-rust against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtestDrive64%2Ftry-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/testDrive64/try-rust on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/testDrive64/try-rust
[INFO] finished tweaking git repo https://github.com/testDrive64/try-rust
[INFO] tweaked toml for git repo https://github.com/testDrive64/try-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/testDrive64/try-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-rational v0.1.42
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.20
[INFO] [stderr]   Downloaded const_fn v0.4.2
[INFO] [stderr]   Downloaded miniz-sys v0.1.12
[INFO] [stderr]   Downloaded rayon-core v1.9.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.0
[INFO] [stderr]   Downloaded memoffset v0.5.6
[INFO] [stderr]   Downloaded miniz_oxide v0.4.3
[INFO] [stderr]   Downloaded addr2line v0.14.0
[INFO] [stderr]   Downloaded raster v0.2.0
[INFO] [stderr]   Downloaded error-chain v0.10.0
[INFO] [stderr]   Downloaded backtrace v0.3.54
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.0
[INFO] [stderr]   Downloaded either v1.6.1
[INFO] [stderr]   Downloaded smallvec v0.4.5
[INFO] [stderr]   Downloaded ferris-says v0.2.0
[INFO] [stderr]   Downloaded object v0.22.0
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded gimli v0.23.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.18
[INFO] [stderr]   Downloaded color_quant v1.1.0
[INFO] [stderr]   Downloaded gif v0.9.2
[INFO] [stderr]   Downloaded flate2 v0.2.20
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.0
[INFO] [stderr]   Downloaded rayon v1.5.0
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded cc v1.0.61
[INFO] [stderr]   Downloaded num-iter v0.1.42
[INFO] [stderr]   Downloaded num-integer v0.1.44
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2cad8eabc9ba56942fe9d44b4488308559ed2ead3d3750322c2a25a05767c3c1
[INFO] running `Command { std: "docker" "start" "-a" "2cad8eabc9ba56942fe9d44b4488308559ed2ead3d3750322c2a25a05767c3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cad8eabc9ba56942fe9d44b4488308559ed2ead3d3750322c2a25a05767c3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cad8eabc9ba56942fe9d44b4488308559ed2ead3d3750322c2a25a05767c3c1", kill_on_drop: false }`
[INFO] [stdout] 2cad8eabc9ba56942fe9d44b4488308559ed2ead3d3750322c2a25a05767c3c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52e6125baa785fb1c3134507044e6ff1e001ae03df2c2f72d868a545d0a28278
[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" "52e6125baa785fb1c3134507044e6ff1e001ae03df2c2f72d868a545d0a28278", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking ferris-says v0.2.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking raster v0.2.0
[INFO] [stderr]     Checking hello_remote_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.76s
[INFO] running `Command { std: "docker" "inspect" "52e6125baa785fb1c3134507044e6ff1e001ae03df2c2f72d868a545d0a28278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52e6125baa785fb1c3134507044e6ff1e001ae03df2c2f72d868a545d0a28278", kill_on_drop: false }`
[INFO] [stdout] 52e6125baa785fb1c3134507044e6ff1e001ae03df2c2f72d868a545d0a28278