[INFO] cloning repository https://github.com/kinodjnz/cp-snippet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kinodjnz/cp-snippet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinodjnz%2Fcp-snippet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinodjnz%2Fcp-snippet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2991f1909a0aa4712f7b56a0615781fc7433da3
[INFO] checking kinodjnz/cp-snippet against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinodjnz%2Fcp-snippet" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kinodjnz/cp-snippet on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kinodjnz/cp-snippet
[INFO] finished tweaking git repo https://github.com/kinodjnz/cp-snippet
[INFO] tweaked toml for git repo https://github.com/kinodjnz/cp-snippet written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kinodjnz/cp-snippet 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--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
[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 kinodjnz/cp-snippet against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinodjnz%2Fcp-snippet" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kinodjnz/cp-snippet on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kinodjnz/cp-snippet
[INFO] finished tweaking git repo https://github.com/kinodjnz/cp-snippet
[INFO] tweaked toml for git repo https://github.com/kinodjnz/cp-snippet written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kinodjnz/cp-snippet 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" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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 cargo-snippet v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68f709c1beecf74b576fe233e969c25d055bd77de1965b5bce066c6b6bdb8feb
[INFO] running `Command { std: "docker" "start" "-a" "68f709c1beecf74b576fe233e969c25d055bd77de1965b5bce066c6b6bdb8feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68f709c1beecf74b576fe233e969c25d055bd77de1965b5bce066c6b6bdb8feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f709c1beecf74b576fe233e969c25d055bd77de1965b5bce066c6b6bdb8feb", kill_on_drop: false }`
[INFO] [stdout] 68f709c1beecf74b576fe233e969c25d055bd77de1965b5bce066c6b6bdb8feb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 631b8057b5c5440e0f2268d13640eda384069b2ee535ba7158fc985307e8d964
[INFO] running `Command { std: "docker" "start" "-a" "631b8057b5c5440e0f2268d13640eda384069b2ee535ba7158fc985307e8d964", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-snippet v0.5.1
[INFO] [stderr]     Checking cp-snippet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `WrappingAddSigned` is never used
[INFO] [stdout]   --> src/wrapping_add_signed.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 30 |         trait WrappingAddSigned {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 | wrapping_add_signed!();
[INFO] [stdout]    | ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `wrapping_add_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/integer_indexed_vec.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<T> IntegerIndexedVec<T> {
[INFO] [stdout]    | ---------------------------- associated function in this implementation
[INFO] [stdout] 12 |     fn new(v: Vec<T>, offset: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoIntegerIndexedVec` is never used
[INFO] [stdout]   --> src/integer_indexed_vec.rs:57:7
[INFO] [stdout]    |
[INFO] [stdout] 57 | trait IntoIntegerIndexedVec {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "631b8057b5c5440e0f2268d13640eda384069b2ee535ba7158fc985307e8d964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "631b8057b5c5440e0f2268d13640eda384069b2ee535ba7158fc985307e8d964", kill_on_drop: false }`
[INFO] [stdout] 631b8057b5c5440e0f2268d13640eda384069b2ee535ba7158fc985307e8d964