[INFO] cloning repository https://github.com/Xanewok/subhistory
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Xanewok/subhistory" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXanewok%2Fsubhistory", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXanewok%2Fsubhistory'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 261da5f73abd17e0066e4456619b811f4ce9eb04
[INFO] testing Xanewok/subhistory against try#17092ad00ed8fe1e7f81a7e38238ff70779034b1 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXanewok%2Fsubhistory" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Xanewok/subhistory on toolchain 17092ad00ed8fe1e7f81a7e38238ff70779034b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Xanewok/subhistory
[INFO] finished tweaking git repo https://github.com/Xanewok/subhistory
[INFO] tweaked toml for git repo https://github.com/Xanewok/subhistory written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Xanewok/subhistory 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" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "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 git2 v0.9.1
[INFO] [stderr]   Downloaded libgit2-sys v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f66b08ed0035a0e222daf388496481accff911a8556435186e041319014fa4e
[INFO] running `Command { std: "docker" "start" "-a" "0f66b08ed0035a0e222daf388496481accff911a8556435186e041319014fa4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f66b08ed0035a0e222daf388496481accff911a8556435186e041319014fa4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f66b08ed0035a0e222daf388496481accff911a8556435186e041319014fa4e", kill_on_drop: false }`
[INFO] [stdout] 0f66b08ed0035a0e222daf388496481accff911a8556435186e041319014fa4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abd2a1d1665e1159883bc74799925387e29b7adfc99a7da36f35865850406e28
[INFO] running `Command { std: "docker" "start" "-a" "abd2a1d1665e1159883bc74799925387e29b7adfc99a7da36f35865850406e28", kill_on_drop: false }`
[INFO] [stderr]    Compiling subhistory v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Single` is never used
[INFO] [stdout]  --> src/main.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | trait Single: Iterator {
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `commit` is never read
[INFO] [stdout]    --> src/main.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | struct CommitWithDetails {
[INFO] [stdout]     |        ----------------- field in this struct
[INFO] [stdout] 121 |     commit: String,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CommitWithDetails` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "abd2a1d1665e1159883bc74799925387e29b7adfc99a7da36f35865850406e28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd2a1d1665e1159883bc74799925387e29b7adfc99a7da36f35865850406e28", kill_on_drop: false }`
[INFO] [stdout] abd2a1d1665e1159883bc74799925387e29b7adfc99a7da36f35865850406e28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 903ced54f6d596d1c670c378b60c498f1340f4c154c72e6c22582cbbccc5a55d
[INFO] running `Command { std: "docker" "start" "-a" "903ced54f6d596d1c670c378b60c498f1340f4c154c72e6c22582cbbccc5a55d", kill_on_drop: false }`
[INFO] [stderr]    Compiling subhistory v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Single` is never used
[INFO] [stdout]  --> src/main.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | trait Single: Iterator {
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `commit` is never read
[INFO] [stdout]    --> src/main.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | struct CommitWithDetails {
[INFO] [stdout]     |        ----------------- field in this struct
[INFO] [stdout] 121 |     commit: String,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CommitWithDetails` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "903ced54f6d596d1c670c378b60c498f1340f4c154c72e6c22582cbbccc5a55d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "903ced54f6d596d1c670c378b60c498f1340f4c154c72e6c22582cbbccc5a55d", kill_on_drop: false }`
[INFO] [stdout] 903ced54f6d596d1c670c378b60c498f1340f4c154c72e6c22582cbbccc5a55d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4fa5bb4aa68392a1691b64ae963eef193a8d75f040e2e125417cf6ff386423ce
[INFO] running `Command { std: "docker" "start" "-a" "4fa5bb4aa68392a1691b64ae963eef193a8d75f040e2e125417cf6ff386423ce", kill_on_drop: false }`
[INFO] [stderr] warning: trait `Single` is never used
[INFO] [stderr]  --> src/main.rs:8:7
[INFO] [stderr]   |
[INFO] [stderr] 8 | trait Single: Iterator {
[INFO] [stderr]   |       ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `commit` is never read
[INFO] [stderr]    --> src/main.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 120 | struct CommitWithDetails {
[INFO] [stderr]     |        ----------------- field in this struct
[INFO] [stderr] 121 |     commit: String,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `CommitWithDetails` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `subhistory` (bin "subhistory" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/subhistory-7396480ae294ba80)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4fa5bb4aa68392a1691b64ae963eef193a8d75f040e2e125417cf6ff386423ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fa5bb4aa68392a1691b64ae963eef193a8d75f040e2e125417cf6ff386423ce", kill_on_drop: false }`
[INFO] [stdout] 4fa5bb4aa68392a1691b64ae963eef193a8d75f040e2e125417cf6ff386423ce