[INFO] fetching crate piece_table 0.1.0...
[INFO] testing piece_table-0.1.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate piece_table 0.1.0 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate piece_table 0.1.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piece_table 0.1.0
[INFO] finished tweaking crates.io crate piece_table 0.1.0
[INFO] tweaked toml for crates.io crate piece_table 0.1.0 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c872327b874882bf8dd74303ad7f8303f7429729934eedbdec193cb05e5a20c8
[INFO] running `Command { std: "docker" "start" "-a" "c872327b874882bf8dd74303ad7f8303f7429729934eedbdec193cb05e5a20c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c872327b874882bf8dd74303ad7f8303f7429729934eedbdec193cb05e5a20c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c872327b874882bf8dd74303ad7f8303f7429729934eedbdec193cb05e5a20c8", kill_on_drop: false }`
[INFO] [stdout] c872327b874882bf8dd74303ad7f8303f7429729934eedbdec193cb05e5a20c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74b2c3f7648f83841fa18afaac2513820f65c282b0d2353a62f687e7170199e9
[INFO] running `Command { std: "docker" "start" "-a" "74b2c3f7648f83841fa18afaac2513820f65c282b0d2353a62f687e7170199e9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling piece_table v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "74b2c3f7648f83841fa18afaac2513820f65c282b0d2353a62f687e7170199e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b2c3f7648f83841fa18afaac2513820f65c282b0d2353a62f687e7170199e9", kill_on_drop: false }`
[INFO] [stdout] 74b2c3f7648f83841fa18afaac2513820f65c282b0d2353a62f687e7170199e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd95d6dbe9e0ca6db14500f8554a156278f9cbd64b59d2f0562927754c8aeb30
[INFO] running `Command { std: "docker" "start" "-a" "fd95d6dbe9e0ca6db14500f8554a156278f9cbd64b59d2f0562927754c8aeb30", kill_on_drop: false }`
[INFO] [stderr]    Compiling piece_table v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "fd95d6dbe9e0ca6db14500f8554a156278f9cbd64b59d2f0562927754c8aeb30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd95d6dbe9e0ca6db14500f8554a156278f9cbd64b59d2f0562927754c8aeb30", kill_on_drop: false }`
[INFO] [stdout] fd95d6dbe9e0ca6db14500f8554a156278f9cbd64b59d2f0562927754c8aeb30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b8deafbaeeaa354683571e1c031bc1699b9b2a992b8faff7eac8f4b49e040bc8
[INFO] running `Command { std: "docker" "start" "-a" "b8deafbaeeaa354683571e1c031bc1699b9b2a992b8faff7eac8f4b49e040bc8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/piece_table-16b13d41dcffa7a4)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::add_string_at_empty ... ok
[INFO] [stdout] test tests::add_string_at_end ... ok
[INFO] [stdout] test tests::add_string_at_middle ... ok
[INFO] [stdout] test tests::add_string_at_start ... ok
[INFO] [stdout] test tests::delete_string_at_middle_on_read_only_buffer ... ok
[INFO] [stdout] test tests::char_at_init_state ... ok
[INFO] [stdout] test tests::init - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests piece_table
[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" "b8deafbaeeaa354683571e1c031bc1699b9b2a992b8faff7eac8f4b49e040bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8deafbaeeaa354683571e1c031bc1699b9b2a992b8faff7eac8f4b49e040bc8", kill_on_drop: false }`
[INFO] [stdout] b8deafbaeeaa354683571e1c031bc1699b9b2a992b8faff7eac8f4b49e040bc8