[INFO] cloning repository https://github.com/nelhage/ultimattt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nelhage/ultimattt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelhage%2Fultimattt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelhage%2Fultimattt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f50df2cd672dfca80b5164d535dc3adb34f887cd
[INFO] checking nelhage/ultimattt against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelhage%2Fultimattt" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nelhage/ultimattt on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nelhage/ultimattt
[INFO] finished tweaking git repo https://github.com/nelhage/ultimattt
[INFO] tweaked toml for git repo https://github.com/nelhage/ultimattt written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nelhage/ultimattt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--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-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e35bd1bd44315f20aee9e4e995a0777fcf7c68e7df0a5066d46bc16af7cbb66
[INFO] running `Command { std: "docker" "start" "-a" "9e35bd1bd44315f20aee9e4e995a0777fcf7c68e7df0a5066d46bc16af7cbb66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e35bd1bd44315f20aee9e4e995a0777fcf7c68e7df0a5066d46bc16af7cbb66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e35bd1bd44315f20aee9e4e995a0777fcf7c68e7df0a5066d46bc16af7cbb66", kill_on_drop: false }`
[INFO] [stdout] 9e35bd1bd44315f20aee9e4e995a0777fcf7c68e7df0a5066d46bc16af7cbb66
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6bddc4f2085b9fe5b6e9b180892ba3941e1b10a8eece87236af4c585fc5f887
[INFO] running `Command { std: "docker" "start" "-a" "c6bddc4f2085b9fe5b6e9b180892ba3941e1b10a8eece87236af4c585fc5f887", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling packed_simd_2 v0.3.5
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]     Checking probe v0.2.1 (https://github.com/cuviper/rust-libprobe.git#ae1286b2)
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling cast v0.2.6
[INFO] [stderr]    Compiling vergen v3.2.0
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]    Compiling ultimattt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking hdrhistogram v7.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.47s
[INFO] running `Command { std: "docker" "inspect" "c6bddc4f2085b9fe5b6e9b180892ba3941e1b10a8eece87236af4c585fc5f887", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6bddc4f2085b9fe5b6e9b180892ba3941e1b10a8eece87236af4c585fc5f887", kill_on_drop: false }`
[INFO] [stdout] c6bddc4f2085b9fe5b6e9b180892ba3941e1b10a8eece87236af4c585fc5f887