[INFO] cloning repository https://github.com/isaac-parks/clean-old-branches
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/isaac-parks/clean-old-branches" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisaac-parks%2Fclean-old-branches", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisaac-parks%2Fclean-old-branches'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4b1cc9582d132b835bf5d28dee55e7c6eb496a8
[INFO] checking isaac-parks/clean-old-branches against master#ed141926048597e3649bb238ca3dc417904cd56c for pr-134300
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisaac-parks%2Fclean-old-branches" "/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/isaac-parks/clean-old-branches on toolchain ed141926048597e3649bb238ca3dc417904cd56c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed141926048597e3649bb238ca3dc417904cd56c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/isaac-parks/clean-old-branches
[INFO] finished tweaking git repo https://github.com/isaac-parks/clean-old-branches
[INFO] tweaked toml for git repo https://github.com/isaac-parks/clean-old-branches written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/isaac-parks/clean-old-branches 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" "+ed141926048597e3649bb238ca3dc417904cd56c" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+ed141926048597e3649bb238ca3dc417904cd56c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13c105b375177c64ad775640b26275ca455da249aeab29b6da0ce118fdb4f666
[INFO] running `Command { std: "docker" "start" "-a" "13c105b375177c64ad775640b26275ca455da249aeab29b6da0ce118fdb4f666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13c105b375177c64ad775640b26275ca455da249aeab29b6da0ce118fdb4f666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13c105b375177c64ad775640b26275ca455da249aeab29b6da0ce118fdb4f666", kill_on_drop: false }`
[INFO] [stdout] 13c105b375177c64ad775640b26275ca455da249aeab29b6da0ce118fdb4f666
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+ed141926048597e3649bb238ca3dc417904cd56c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f911d4224e0c81f99bb8028707f7e99a0e5ba4832282cff2cb83f5e03191fdc
[INFO] running `Command { std: "docker" "start" "-a" "4f911d4224e0c81f99bb8028707f7e99a0e5ba4832282cff2cb83f5e03191fdc", kill_on_drop: false }`
[INFO] [stderr]     Checking imt_cli v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/vault_db.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/unset_vault_db.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/vault_db.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/unset_vault_db.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "4f911d4224e0c81f99bb8028707f7e99a0e5ba4832282cff2cb83f5e03191fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f911d4224e0c81f99bb8028707f7e99a0e5ba4832282cff2cb83f5e03191fdc", kill_on_drop: false }`
[INFO] [stdout] 4f911d4224e0c81f99bb8028707f7e99a0e5ba4832282cff2cb83f5e03191fdc