[INFO] fetching crate lines_writer 0.1.1...
[INFO] testing lines_writer-0.1.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate lines_writer 0.1.1 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate lines_writer 0.1.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lines_writer 0.1.1
[INFO] finished tweaking crates.io crate lines_writer 0.1.1
[INFO] tweaked toml for crates.io crate lines_writer 0.1.1 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cb8acb759a64505b6cb535c413ea1ac52436443bfded5b6e1e61e8aa92bf724
[INFO] running `Command { std: "docker" "start" "-a" "7cb8acb759a64505b6cb535c413ea1ac52436443bfded5b6e1e61e8aa92bf724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cb8acb759a64505b6cb535c413ea1ac52436443bfded5b6e1e61e8aa92bf724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb8acb759a64505b6cb535c413ea1ac52436443bfded5b6e1e61e8aa92bf724", kill_on_drop: false }`
[INFO] [stdout] 7cb8acb759a64505b6cb535c413ea1ac52436443bfded5b6e1e61e8aa92bf724
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 425c773d2cfca58f3d558fae633d41064524f9a9de6f9d3d4082fc7f03e27b6c
[INFO] running `Command { std: "docker" "start" "-a" "425c773d2cfca58f3d558fae633d41064524f9a9de6f9d3d4082fc7f03e27b6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling lines_writer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "425c773d2cfca58f3d558fae633d41064524f9a9de6f9d3d4082fc7f03e27b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425c773d2cfca58f3d558fae633d41064524f9a9de6f9d3d4082fc7f03e27b6c", kill_on_drop: false }`
[INFO] [stdout] 425c773d2cfca58f3d558fae633d41064524f9a9de6f9d3d4082fc7f03e27b6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7786e1cb4da117d211b134f90c5ab86a104d5fd7bbafd282aaea18bb9f58c184
[INFO] running `Command { std: "docker" "start" "-a" "7786e1cb4da117d211b134f90c5ab86a104d5fd7bbafd282aaea18bb9f58c184", kill_on_drop: false }`
[INFO] [stderr]    Compiling lines_writer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "7786e1cb4da117d211b134f90c5ab86a104d5fd7bbafd282aaea18bb9f58c184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7786e1cb4da117d211b134f90c5ab86a104d5fd7bbafd282aaea18bb9f58c184", kill_on_drop: false }`
[INFO] [stdout] 7786e1cb4da117d211b134f90c5ab86a104d5fd7bbafd282aaea18bb9f58c184
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0108d26a56688b83e4796ea84e863cfb316813d4f94d1cfe692555b7b3f12fc3
[INFO] running `Command { std: "docker" "start" "-a" "0108d26a56688b83e4796ea84e863cfb316813d4f94d1cfe692555b7b3f12fc3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lines_writer-79d55bae536dd38f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] This is
[INFO] [stdout] a string
[INFO] [stdout] to test
[INFO] [stdout] the trait implementation
[INFO] [stdout] test tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lines_writer
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0108d26a56688b83e4796ea84e863cfb316813d4f94d1cfe692555b7b3f12fc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0108d26a56688b83e4796ea84e863cfb316813d4f94d1cfe692555b7b3f12fc3", kill_on_drop: false }`
[INFO] [stdout] 0108d26a56688b83e4796ea84e863cfb316813d4f94d1cfe692555b7b3f12fc3