[INFO] cloning repository https://github.com/lukasgeis/negative_edge_weights
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lukasgeis/negative_edge_weights" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukasgeis%2Fnegative_edge_weights", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukasgeis%2Fnegative_edge_weights'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e6b592a125bb92e141ac5e6e684d723bbff9f61
[INFO] checking lukasgeis/negative_edge_weights against try#81185c2d21df0ba45fd33e65bbdce76dc0d89bd9 for pr-139646
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukasgeis%2Fnegative_edge_weights" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lukasgeis/negative_edge_weights on toolchain 81185c2d21df0ba45fd33e65bbdce76dc0d89bd9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81185c2d21df0ba45fd33e65bbdce76dc0d89bd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lukasgeis/negative_edge_weights
[INFO] finished tweaking git repo https://github.com/lukasgeis/negative_edge_weights
[INFO] tweaked toml for git repo https://github.com/lukasgeis/negative_edge_weights written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81185c2d21df0ba45fd33e65bbdce76dc0d89bd9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v2.0.1)
[INFO] [stderr]       Adding ordered-float v4.6.0 (available: v5.0.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.0)
[INFO] [stderr]       Adding rand_distr v0.4.3 (available: v0.5.1)
[INFO] [stderr]       Adding rand_pcg v0.3.1 (available: v0.9.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81185c2d21df0ba45fd33e65bbdce76dc0d89bd9" "fetch" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+81185c2d21df0ba45fd33e65bbdce76dc0d89bd9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29c10817e40262896fdcdfffb08b26f9c57f725fc96724f2916f39673c966421
[INFO] running `Command { std: "docker" "start" "-a" "29c10817e40262896fdcdfffb08b26f9c57f725fc96724f2916f39673c966421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29c10817e40262896fdcdfffb08b26f9c57f725fc96724f2916f39673c966421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c10817e40262896fdcdfffb08b26f9c57f725fc96724f2916f39673c966421", kill_on_drop: false }`
[INFO] [stdout] 29c10817e40262896fdcdfffb08b26f9c57f725fc96724f2916f39673c966421
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+81185c2d21df0ba45fd33e65bbdce76dc0d89bd9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f929473f4801743f6784c9f100728793343f102c5daad0b9ee90c85170678bc1
[INFO] running `Command { std: "docker" "start" "-a" "f929473f4801743f6784c9f100728793343f102c5daad0b9ee90c85170678bc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking rand_pcg v0.3.1
[INFO] [stderr]     Checking ordered-float v4.6.0
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking ez-bitset v0.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking negative_edge_weights v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.45s
[INFO] running `Command { std: "docker" "inspect" "f929473f4801743f6784c9f100728793343f102c5daad0b9ee90c85170678bc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f929473f4801743f6784c9f100728793343f102c5daad0b9ee90c85170678bc1", kill_on_drop: false }`
[INFO] [stdout] f929473f4801743f6784c9f100728793343f102c5daad0b9ee90c85170678bc1