[INFO] fetching crate exttest 0.1.0...
[INFO] checking exttest-0.1.0 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate exttest 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate exttest 0.1.0 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exttest 0.1.0
[INFO] finished tweaking crates.io crate exttest 0.1.0
[INFO] tweaked toml for crates.io crate exttest 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate exttest 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f6b4bbb5a0d587d28eb90d83680b69fdb6a60c9f8fb760063e6d93faa1b54b4
[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" "6f6b4bbb5a0d587d28eb90d83680b69fdb6a60c9f8fb760063e6d93faa1b54b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f6b4bbb5a0d587d28eb90d83680b69fdb6a60c9f8fb760063e6d93faa1b54b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f6b4bbb5a0d587d28eb90d83680b69fdb6a60c9f8fb760063e6d93faa1b54b4", kill_on_drop: false }`
[INFO] [stdout] 6f6b4bbb5a0d587d28eb90d83680b69fdb6a60c9f8fb760063e6d93faa1b54b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2788cc721e7a8eb84375f1c09285921d06fdb118ee2a9ecbbe1b1fab48298e7
[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" "d2788cc721e7a8eb84375f1c09285921d06fdb118ee2a9ecbbe1b1fab48298e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling camino v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.63
[INFO] [stderr]    Compiling target-spec v0.7.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking supercow v0.1.0
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking nested v0.1.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking diffy v0.2.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking twox-hash v1.6.0
[INFO] [stderr]     Checking cfg-expr v0.7.1
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]     Checking anyhow v1.0.38
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking colored-diff v0.2.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking diffus v0.9.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking atomicwrites v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking rental v0.5.5
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking cargo-platform v0.1.1
[INFO] [stderr]     Checking guppy-summaries v0.4.0
[INFO] [stderr]     Checking cargo_metadata v0.12.3
[INFO] [stderr]     Checking guppy v0.8.0
[INFO] [stderr]     Checking determinator v0.3.0
[INFO] [stderr]     Checking hakari v0.2.0
[INFO] [stderr]     Checking x-core v0.1.0
[INFO] [stderr]     Checking x-lint v0.1.0
[INFO] [stderr]     Checking exttest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `Command { std: "docker" "inspect" "d2788cc721e7a8eb84375f1c09285921d06fdb118ee2a9ecbbe1b1fab48298e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2788cc721e7a8eb84375f1c09285921d06fdb118ee2a9ecbbe1b1fab48298e7", kill_on_drop: false }`
[INFO] [stdout] d2788cc721e7a8eb84375f1c09285921d06fdb118ee2a9ecbbe1b1fab48298e7