[INFO] fetching crate txt_writer 0.1.4...
[INFO] testing txt_writer-0.1.4 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate txt_writer 0.1.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate txt_writer 0.1.4
[INFO] finished tweaking crates.io crate txt_writer 0.1.4
[INFO] tweaked toml for crates.io crate txt_writer 0.1.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate txt_writer 0.1.4 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate txt_writer 0.1.4 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 354de066907a6cd55f0900214a234d2566aa0f196fb1543913fb6db9f29908bf
[INFO] running `Command { std: "docker" "start" "-a" "354de066907a6cd55f0900214a234d2566aa0f196fb1543913fb6db9f29908bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "354de066907a6cd55f0900214a234d2566aa0f196fb1543913fb6db9f29908bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "354de066907a6cd55f0900214a234d2566aa0f196fb1543913fb6db9f29908bf", kill_on_drop: false }`
[INFO] [stdout] 354de066907a6cd55f0900214a234d2566aa0f196fb1543913fb6db9f29908bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 181c20b84d4d189f8ff6d4d779c3e4a1b24c64f88a533c1a07ffc80a3867e961
[INFO] running `Command { std: "docker" "start" "-a" "181c20b84d4d189f8ff6d4d779c3e4a1b24c64f88a533c1a07ffc80a3867e961", kill_on_drop: false }`
[INFO] [stderr]    Compiling txt_writer v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "181c20b84d4d189f8ff6d4d779c3e4a1b24c64f88a533c1a07ffc80a3867e961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "181c20b84d4d189f8ff6d4d779c3e4a1b24c64f88a533c1a07ffc80a3867e961", kill_on_drop: false }`
[INFO] [stdout] 181c20b84d4d189f8ff6d4d779c3e4a1b24c64f88a533c1a07ffc80a3867e961
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5929a123789db2023d11b76bca80e492254cdcebc3217eb3788fd387de583d66
[INFO] running `Command { std: "docker" "start" "-a" "5929a123789db2023d11b76bca80e492254cdcebc3217eb3788fd387de583d66", kill_on_drop: false }`
[INFO] [stderr]    Compiling txt_writer v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "5929a123789db2023d11b76bca80e492254cdcebc3217eb3788fd387de583d66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5929a123789db2023d11b76bca80e492254cdcebc3217eb3788fd387de583d66", kill_on_drop: false }`
[INFO] [stdout] 5929a123789db2023d11b76bca80e492254cdcebc3217eb3788fd387de583d66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f02541c60a73fbd9bd995b32fe2d4aec3bea8e9ffe7899b4ff667eea9b5bbb2b
[INFO] running `Command { std: "docker" "start" "-a" "f02541c60a73fbd9bd995b32fe2d4aec3bea8e9ffe7899b4ff667eea9b5bbb2b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/txt_writer-a32a777a96be0f47)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/txt_writer-1eb602b2abd52d40)
[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]    Doc-tests txt_writer
[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" "f02541c60a73fbd9bd995b32fe2d4aec3bea8e9ffe7899b4ff667eea9b5bbb2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02541c60a73fbd9bd995b32fe2d4aec3bea8e9ffe7899b4ff667eea9b5bbb2b", kill_on_drop: false }`
[INFO] [stdout] f02541c60a73fbd9bd995b32fe2d4aec3bea8e9ffe7899b4ff667eea9b5bbb2b