[INFO] fetching crate maybe-string 0.1.0...
[INFO] testing maybe-string-0.1.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate maybe-string 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate maybe-string 0.1.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maybe-string 0.1.0
[INFO] finished tweaking crates.io crate maybe-string 0.1.0
[INFO] tweaked toml for crates.io crate maybe-string 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 106dfb2e790067721a0ef819c7f2ffe0ac11e2824eacf67e152bc2bec6afa7a8
[INFO] running `Command { std: "docker" "start" "-a" "106dfb2e790067721a0ef819c7f2ffe0ac11e2824eacf67e152bc2bec6afa7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "106dfb2e790067721a0ef819c7f2ffe0ac11e2824eacf67e152bc2bec6afa7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "106dfb2e790067721a0ef819c7f2ffe0ac11e2824eacf67e152bc2bec6afa7a8", kill_on_drop: false }`
[INFO] [stdout] 106dfb2e790067721a0ef819c7f2ffe0ac11e2824eacf67e152bc2bec6afa7a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb2d6ac6d424d8f7c1e8015b2c14cc5f4716c3f7313ec8fa76fc03de0f04984e
[INFO] running `Command { std: "docker" "start" "-a" "fb2d6ac6d424d8f7c1e8015b2c14cc5f4716c3f7313ec8fa76fc03de0f04984e", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "fb2d6ac6d424d8f7c1e8015b2c14cc5f4716c3f7313ec8fa76fc03de0f04984e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb2d6ac6d424d8f7c1e8015b2c14cc5f4716c3f7313ec8fa76fc03de0f04984e", kill_on_drop: false }`
[INFO] [stdout] fb2d6ac6d424d8f7c1e8015b2c14cc5f4716c3f7313ec8fa76fc03de0f04984e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cd134520f77cbc79d3d1b9540931d273d555cc9e600c14807dbbe431907d3c8
[INFO] running `Command { std: "docker" "start" "-a" "7cd134520f77cbc79d3d1b9540931d273d555cc9e600c14807dbbe431907d3c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "7cd134520f77cbc79d3d1b9540931d273d555cc9e600c14807dbbe431907d3c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd134520f77cbc79d3d1b9540931d273d555cc9e600c14807dbbe431907d3c8", kill_on_drop: false }`
[INFO] [stdout] 7cd134520f77cbc79d3d1b9540931d273d555cc9e600c14807dbbe431907d3c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77689f8f67959254fde34a634439968e11a13a0cba20868e5721020f4b660265
[INFO] running `Command { std: "docker" "start" "-a" "77689f8f67959254fde34a634439968e11a13a0cba20868e5721020f4b660265", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maybe_string-477ad93cb5973718)
[INFO] [stderr]    Doc-tests maybe-string
[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 2 tests
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "77689f8f67959254fde34a634439968e11a13a0cba20868e5721020f4b660265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77689f8f67959254fde34a634439968e11a13a0cba20868e5721020f4b660265", kill_on_drop: false }`
[INFO] [stdout] 77689f8f67959254fde34a634439968e11a13a0cba20868e5721020f4b660265