[INFO] cloning repository https://github.com/fansanelli/rust_attack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fansanelli/rust_attack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffansanelli%2Frust_attack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffansanelli%2Frust_attack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32826867216ad1633f4aa12d4168f4300a52ef5e
[INFO] checking fansanelli/rust_attack against try#da0275e101cdc809ce291ed8b64d6f82c6b65467 for pr-134276
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffansanelli%2Frust_attack" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fansanelli/rust_attack on toolchain da0275e101cdc809ce291ed8b64d6f82c6b65467
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fansanelli/rust_attack
[INFO] finished tweaking git repo https://github.com/fansanelli/rust_attack
[INFO] tweaked toml for git repo https://github.com/fansanelli/rust_attack written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/fansanelli/rust_attack 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" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4cda52da6a9a7e7938056da5af3c75e614660deeb0d16edcba9a14a4fe8dc7a
[INFO] running `Command { std: "docker" "start" "-a" "e4cda52da6a9a7e7938056da5af3c75e614660deeb0d16edcba9a14a4fe8dc7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4cda52da6a9a7e7938056da5af3c75e614660deeb0d16edcba9a14a4fe8dc7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4cda52da6a9a7e7938056da5af3c75e614660deeb0d16edcba9a14a4fe8dc7a", kill_on_drop: false }`
[INFO] [stdout] e4cda52da6a9a7e7938056da5af3c75e614660deeb0d16edcba9a14a4fe8dc7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf8e545f07aa3016d38e0d0dd4612eb7f58ab2b8aa1e48eb4415e8a2ba95bc00
[INFO] running `Command { std: "docker" "start" "-a" "cf8e545f07aa3016d38e0d0dd4612eb7f58ab2b8aa1e48eb4415e8a2ba95bc00", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust_attack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `brent` is never used
[INFO] [stdout]  --> src/brent.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn brent(n: BigInt) -> BigInt {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `brent` is never used
[INFO] [stdout]  --> src/brent.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn brent(n: BigInt) -> BigInt {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.17s
[INFO] running `Command { std: "docker" "inspect" "cf8e545f07aa3016d38e0d0dd4612eb7f58ab2b8aa1e48eb4415e8a2ba95bc00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf8e545f07aa3016d38e0d0dd4612eb7f58ab2b8aa1e48eb4415e8a2ba95bc00", kill_on_drop: false }`
[INFO] [stdout] cf8e545f07aa3016d38e0d0dd4612eb7f58ab2b8aa1e48eb4415e8a2ba95bc00