[INFO] cloning repository https://github.com/takus69/abc346
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/takus69/abc346" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fabc346", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fabc346'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36c2b31c0eb0480ba848c85e7144ea16779450e7
[INFO] testing takus69/abc346 against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fabc346" "/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/takus69/abc346 on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/takus69/abc346
[INFO] finished tweaking git repo https://github.com/takus69/abc346
[INFO] tweaked toml for git repo https://github.com/takus69/abc346 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/takus69/abc346 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proconio v0.4.5
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55931ef1dbe8c9c5015253fab406c93d13e62ec941829e72ada1aed6602bae4d
[INFO] running `Command { std: "docker" "start" "-a" "55931ef1dbe8c9c5015253fab406c93d13e62ec941829e72ada1aed6602bae4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55931ef1dbe8c9c5015253fab406c93d13e62ec941829e72ada1aed6602bae4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55931ef1dbe8c9c5015253fab406c93d13e62ec941829e72ada1aed6602bae4d", kill_on_drop: false }`
[INFO] [stdout] 55931ef1dbe8c9c5015253fab406c93d13e62ec941829e72ada1aed6602bae4d
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b76bc4cb1f3901ffbee2dfab565166453c6982a5a7d4e9b328061029f1555703
[INFO] running `Command { std: "docker" "start" "-a" "b76bc4cb1f3901ffbee2dfab565166453c6982a5a7d4e9b328061029f1555703", kill_on_drop: false }`
[INFO] [stderr]    Compiling proconio v0.4.5
[INFO] [stderr]    Compiling abc346 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `ans` is never read
[INFO] [stdout]   --> src/bin/b.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut ans = String::new();
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "b76bc4cb1f3901ffbee2dfab565166453c6982a5a7d4e9b328061029f1555703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b76bc4cb1f3901ffbee2dfab565166453c6982a5a7d4e9b328061029f1555703", kill_on_drop: false }`
[INFO] [stdout] b76bc4cb1f3901ffbee2dfab565166453c6982a5a7d4e9b328061029f1555703
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33141a85ffd4c5a2ac67e306719f7401a7d905d7767aae763567119bba5dc5a6
[INFO] running `Command { std: "docker" "start" "-a" "33141a85ffd4c5a2ac67e306719f7401a7d905d7767aae763567119bba5dc5a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling abc346 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `ans` is never read
[INFO] [stdout]   --> src/bin/b.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut ans = String::new();
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "33141a85ffd4c5a2ac67e306719f7401a7d905d7767aae763567119bba5dc5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33141a85ffd4c5a2ac67e306719f7401a7d905d7767aae763567119bba5dc5a6", kill_on_drop: false }`
[INFO] [stdout] 33141a85ffd4c5a2ac67e306719f7401a7d905d7767aae763567119bba5dc5a6
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8b5d0147b65b1066da658aa938fe1e0322b2c7fea33e34bac8ffca7f52d75eb0
[INFO] running `Command { std: "docker" "start" "-a" "8b5d0147b65b1066da658aa938fe1e0322b2c7fea33e34bac8ffca7f52d75eb0", kill_on_drop: false }`
[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] [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] [stderr] warning: value assigned to `ans` is never read
[INFO] [stderr]   --> src/bin/b.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut ans = String::new();
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `abc346` (bin "b" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/bin/a.rs (/opt/rustwide/target/debug/deps/a-a3c6605f7e251957)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/abc346-3623cac27c9049eb)
[INFO] [stderr]      Running unittests src/bin/b.rs (/opt/rustwide/target/debug/deps/b-f9dadcbff824113a)
[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] [stderr]      Running unittests src/bin/c.rs (/opt/rustwide/target/debug/deps/c-4091215fdd23a6b5)
[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] [stderr]      Running unittests src/bin/d.rs (/opt/rustwide/target/debug/deps/d-52bda33921d9a2bc)
[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" "8b5d0147b65b1066da658aa938fe1e0322b2c7fea33e34bac8ffca7f52d75eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5d0147b65b1066da658aa938fe1e0322b2c7fea33e34bac8ffca7f52d75eb0", kill_on_drop: false }`
[INFO] [stdout] 8b5d0147b65b1066da658aa938fe1e0322b2c7fea33e34bac8ffca7f52d75eb0