[INFO] cloning repository https://github.com/ANtlord/system_ladder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ANtlord/system_ladder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FANtlord%2Fsystem_ladder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FANtlord%2Fsystem_ladder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44b3e901bcfed342ce69b974defef244f8170d6d
[INFO] checking ANtlord/system_ladder against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FANtlord%2Fsystem_ladder" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ANtlord/system_ladder on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ANtlord/system_ladder
[INFO] finished tweaking git repo https://github.com/ANtlord/system_ladder
[INFO] tweaked toml for git repo https://github.com/ANtlord/system_ladder written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate git repo https://github.com/ANtlord/system_ladder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2eefb03540d85b4ed3a6714bc57403b9c22ed33093ebb7cced73740ce2e30cf
[INFO] running `Command { std: "docker" "start" "-a" "a2eefb03540d85b4ed3a6714bc57403b9c22ed33093ebb7cced73740ce2e30cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2eefb03540d85b4ed3a6714bc57403b9c22ed33093ebb7cced73740ce2e30cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2eefb03540d85b4ed3a6714bc57403b9c22ed33093ebb7cced73740ce2e30cf", kill_on_drop: false }`
[INFO] [stdout] a2eefb03540d85b4ed3a6714bc57403b9c22ed33093ebb7cced73740ce2e30cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0d34ceca7f1653385331dd2e97868cdd2d5fa58ea60a4d697c2387d9edfe7c7
[INFO] running `Command { std: "docker" "start" "-a" "b0d34ceca7f1653385331dd2e97868cdd2d5fa58ea60a4d697c2387d9edfe7c7", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking system_ladder v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/graph/shortest_path/dijkstra.rs (3 fixes)
[INFO] [stderr]        Fixed src/fs/mod.rs (1 fix)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.69s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking system_ladder v0.1.0 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "b0d34ceca7f1653385331dd2e97868cdd2d5fa58ea60a4d697c2387d9edfe7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d34ceca7f1653385331dd2e97868cdd2d5fa58ea60a4d697c2387d9edfe7c7", kill_on_drop: false }`
[INFO] [stdout] b0d34ceca7f1653385331dd2e97868cdd2d5fa58ea60a4d697c2387d9edfe7c7