[INFO] fetching crate e-write-buffer 0.6.1...
[INFO] testing e-write-buffer-0.6.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate e-write-buffer 0.6.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate e-write-buffer 0.6.1
[INFO] finished tweaking crates.io crate e-write-buffer 0.6.1
[INFO] tweaked toml for crates.io crate e-write-buffer 0.6.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate e-write-buffer 0.6.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate e-write-buffer 0.6.1 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1789d40c945dc1216c935f592f8046ffc3a9dc481ff2eec242cec3bcbfc5690e
[INFO] running `Command { std: "docker" "start" "-a" "1789d40c945dc1216c935f592f8046ffc3a9dc481ff2eec242cec3bcbfc5690e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1789d40c945dc1216c935f592f8046ffc3a9dc481ff2eec242cec3bcbfc5690e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1789d40c945dc1216c935f592f8046ffc3a9dc481ff2eec242cec3bcbfc5690e", kill_on_drop: false }`
[INFO] [stdout] 1789d40c945dc1216c935f592f8046ffc3a9dc481ff2eec242cec3bcbfc5690e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cba316f501534ccdf22be59edc94c14bcd2040bc5d5acf6f7b3e8e3f842c60d
[INFO] running `Command { std: "docker" "start" "-a" "3cba316f501534ccdf22be59edc94c14bcd2040bc5d5acf6f7b3e8e3f842c60d", kill_on_drop: false }`
[INFO] [stderr]    Compiling e-write-buffer v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "3cba316f501534ccdf22be59edc94c14bcd2040bc5d5acf6f7b3e8e3f842c60d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cba316f501534ccdf22be59edc94c14bcd2040bc5d5acf6f7b3e8e3f842c60d", kill_on_drop: false }`
[INFO] [stdout] 3cba316f501534ccdf22be59edc94c14bcd2040bc5d5acf6f7b3e8e3f842c60d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba83ebe4ef1baf42e4a299dfb99b83febc75657639bfe6823817c7edb31b564c
[INFO] running `Command { std: "docker" "start" "-a" "ba83ebe4ef1baf42e4a299dfb99b83febc75657639bfe6823817c7edb31b564c", kill_on_drop: false }`
[INFO] [stderr]    Compiling e-write-buffer v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "ba83ebe4ef1baf42e4a299dfb99b83febc75657639bfe6823817c7edb31b564c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba83ebe4ef1baf42e4a299dfb99b83febc75657639bfe6823817c7edb31b564c", kill_on_drop: false }`
[INFO] [stdout] ba83ebe4ef1baf42e4a299dfb99b83febc75657639bfe6823817c7edb31b564c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a028ea68c6ce3d5677514830c7734e9cd9969ece866fbf1fefb04136f268187f
[INFO] running `Command { std: "docker" "start" "-a" "a028ea68c6ce3d5677514830c7734e9cd9969ece866fbf1fefb04136f268187f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/e_write_buffer-448cc4a96114917b)
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests e_write_buffer
[INFO] [stdout] test test::test_as_str_mut ... ok
[INFO] [stdout] test test::test_display ... ok
[INFO] [stdout] test test::test_is_empty_is_full_and_overflow ... ok
[INFO] [stdout] test test::test_write_wrapper ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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" "a028ea68c6ce3d5677514830c7734e9cd9969ece866fbf1fefb04136f268187f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a028ea68c6ce3d5677514830c7734e9cd9969ece866fbf1fefb04136f268187f", kill_on_drop: false }`
[INFO] [stdout] a028ea68c6ce3d5677514830c7734e9cd9969ece866fbf1fefb04136f268187f