[INFO] cloning repository https://github.com/Keirua/whitespace-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Keirua/whitespace-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeirua%2Fwhitespace-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeirua%2Fwhitespace-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d0aeb9496623bf5b03edd3eb14bfdef73af54b5
[INFO] checking Keirua/whitespace-rs against master#1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492 for pr-118553-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeirua%2Fwhitespace-rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Keirua/whitespace-rs on toolchain 1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Keirua/whitespace-rs
[INFO] finished tweaking git repo https://github.com/Keirua/whitespace-rs
[INFO] tweaked toml for git repo https://github.com/Keirua/whitespace-rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Keirua/whitespace-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking Keirua/whitespace-rs against try#a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33 for pr-118553-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeirua%2Fwhitespace-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Keirua/whitespace-rs on toolchain a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Keirua/whitespace-rs
[INFO] finished tweaking git repo https://github.com/Keirua/whitespace-rs
[INFO] tweaked toml for git repo https://github.com/Keirua/whitespace-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Keirua/whitespace-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking Keirua/whitespace-rs against try#a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33 for pr-118553-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeirua%2Fwhitespace-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Keirua/whitespace-rs on toolchain a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Keirua/whitespace-rs
[INFO] finished tweaking git repo https://github.com/Keirua/whitespace-rs
[INFO] tweaked toml for git repo https://github.com/Keirua/whitespace-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Keirua/whitespace-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.1.6
[INFO] [stderr]   Downloaded ucd-util v0.1.5
[INFO] [stderr]   Downloaded spin v0.5.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.10
[INFO] [stderr]   Downloaded proptest v0.9.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 227667b04dc587115e48132ee946c50e3380adb42251bf0eff438580ef1de033
[INFO] running `Command { std: "docker" "start" "-a" "227667b04dc587115e48132ee946c50e3380adb42251bf0eff438580ef1de033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "227667b04dc587115e48132ee946c50e3380adb42251bf0eff438580ef1de033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227667b04dc587115e48132ee946c50e3380adb42251bf0eff438580ef1de033", kill_on_drop: false }`
[INFO] [stdout] 227667b04dc587115e48132ee946c50e3380adb42251bf0eff438580ef1de033
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84c2e874642e94abdab30d2160f0575952f0951e957b066b4186e19b1cbe0567
[INFO] running `Command { std: "docker" "start" "-a" "84c2e874642e94abdab30d2160f0575952f0951e957b066b4186e19b1cbe0567", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking regex-syntax v0.6.10
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.9.4
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking whitespace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BigNum` is never constructed
[INFO] [stdout]  --> src/bignum.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct BigNum {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add` are never used
[INFO] [stdout]   --> src/bignum.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl BigNum {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 6  |     // Digits are stored in reverse order (small digits first): [1,2,3] is 321 in base ten
[INFO] [stdout] 7  |     pub fn new(v: Vec<i32>) -> BigNum {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub fn add(&self, b: &BigNum) -> BigNum {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.08s
[INFO] running `Command { std: "docker" "inspect" "84c2e874642e94abdab30d2160f0575952f0951e957b066b4186e19b1cbe0567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c2e874642e94abdab30d2160f0575952f0951e957b066b4186e19b1cbe0567", kill_on_drop: false }`
[INFO] [stdout] 84c2e874642e94abdab30d2160f0575952f0951e957b066b4186e19b1cbe0567