[INFO] fetching crate fs-tail 0.1.4...
[INFO] testing fs-tail-0.1.4 against master#0d13f6afeba4935499abe0c9a07426c94492c94e for pr-96025
[INFO] extracting crate fs-tail 0.1.4 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate fs-tail 0.1.4 on toolchain 0d13f6afeba4935499abe0c9a07426c94492c94e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fs-tail 0.1.4
[INFO] finished tweaking crates.io crate fs-tail 0.1.4
[INFO] tweaked toml for crates.io crate fs-tail 0.1.4 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "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" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 933b2cd4e81a98526298c4567603da5bd2f807e09cea3a6c3a6978f4e480ea5b
[INFO] running `Command { std: "docker" "start" "-a" "933b2cd4e81a98526298c4567603da5bd2f807e09cea3a6c3a6978f4e480ea5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "933b2cd4e81a98526298c4567603da5bd2f807e09cea3a6c3a6978f4e480ea5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "933b2cd4e81a98526298c4567603da5bd2f807e09cea3a6c3a6978f4e480ea5b", kill_on_drop: false }`
[INFO] [stdout] 933b2cd4e81a98526298c4567603da5bd2f807e09cea3a6c3a6978f4e480ea5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dda4dc95cb9bf9b495a27c0aa4de6008e7b2a6fe217d17752acc3c6debaa134
[INFO] running `Command { std: "docker" "start" "-a" "1dda4dc95cb9bf9b495a27c0aa4de6008e7b2a6fe217d17752acc3c6debaa134", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling fs-tail v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "1dda4dc95cb9bf9b495a27c0aa4de6008e7b2a6fe217d17752acc3c6debaa134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dda4dc95cb9bf9b495a27c0aa4de6008e7b2a6fe217d17752acc3c6debaa134", kill_on_drop: false }`
[INFO] [stdout] 1dda4dc95cb9bf9b495a27c0aa4de6008e7b2a6fe217d17752acc3c6debaa134
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3a89dd5fdfe025f03b835890e0e87b08c1506ba9e7e3901a37deea03cfcaef4
[INFO] running `Command { std: "docker" "start" "-a" "d3a89dd5fdfe025f03b835890e0e87b08c1506ba9e7e3901a37deea03cfcaef4", kill_on_drop: false }`
[INFO] [stderr]    Compiling fs-tail v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/fs_tail-76aa6b1de30b04d7)
[INFO] running `Command { std: "docker" "inspect" "d3a89dd5fdfe025f03b835890e0e87b08c1506ba9e7e3901a37deea03cfcaef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3a89dd5fdfe025f03b835890e0e87b08c1506ba9e7e3901a37deea03cfcaef4", kill_on_drop: false }`
[INFO] [stdout] d3a89dd5fdfe025f03b835890e0e87b08c1506ba9e7e3901a37deea03cfcaef4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fa8ecaf7af325b653f75b1a96c33f2894eecf3d605d05948fc8380c92353e2c3
[INFO] running `Command { std: "docker" "start" "-a" "fa8ecaf7af325b653f75b1a96c33f2894eecf3d605d05948fc8380c92353e2c3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fs_tail-76aa6b1de30b04d7)
[INFO] [stderr]    Doc-tests fs-tail
[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] running `Command { std: "docker" "inspect" "fa8ecaf7af325b653f75b1a96c33f2894eecf3d605d05948fc8380c92353e2c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa8ecaf7af325b653f75b1a96c33f2894eecf3d605d05948fc8380c92353e2c3", kill_on_drop: false }`
[INFO] [stdout] fa8ecaf7af325b653f75b1a96c33f2894eecf3d605d05948fc8380c92353e2c3