[INFO] fetching crate linebuffer 0.1.2...
[INFO] testing linebuffer-0.1.2 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate linebuffer 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate linebuffer 0.1.2 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 linebuffer 0.1.2
[INFO] finished tweaking crates.io crate linebuffer 0.1.2
[INFO] tweaked toml for crates.io crate linebuffer 0.1.2 written to /workspace/builds/worker-7/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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b5f6520f482df0bfe050935a92c03fedd5bc463cd178d0d0fb3378ba3612a467
[INFO] running `Command { std: "docker" "start" "-a" "b5f6520f482df0bfe050935a92c03fedd5bc463cd178d0d0fb3378ba3612a467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5f6520f482df0bfe050935a92c03fedd5bc463cd178d0d0fb3378ba3612a467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f6520f482df0bfe050935a92c03fedd5bc463cd178d0d0fb3378ba3612a467", kill_on_drop: false }`
[INFO] [stdout] b5f6520f482df0bfe050935a92c03fedd5bc463cd178d0d0fb3378ba3612a467
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] e5b12f596f185c78bc4676868937ddb1a798142f3951a1e53f1f63f54a16d9ea
[INFO] running `Command { std: "docker" "start" "-a" "e5b12f596f185c78bc4676868937ddb1a798142f3951a1e53f1f63f54a16d9ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling linebuffer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "e5b12f596f185c78bc4676868937ddb1a798142f3951a1e53f1f63f54a16d9ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b12f596f185c78bc4676868937ddb1a798142f3951a1e53f1f63f54a16d9ea", kill_on_drop: false }`
[INFO] [stdout] e5b12f596f185c78bc4676868937ddb1a798142f3951a1e53f1f63f54a16d9ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 04e23996202e589fb8396e7f09d3e39f7d21045873c1d2634ee93f31ce672700
[INFO] running `Command { std: "docker" "start" "-a" "04e23996202e589fb8396e7f09d3e39f7d21045873c1d2634ee93f31ce672700", kill_on_drop: false }`
[INFO] [stderr]    Compiling linebuffer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> tests/perf_simple.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "04e23996202e589fb8396e7f09d3e39f7d21045873c1d2634ee93f31ce672700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04e23996202e589fb8396e7f09d3e39f7d21045873c1d2634ee93f31ce672700", kill_on_drop: false }`
[INFO] [stdout] 04e23996202e589fb8396e7f09d3e39f7d21045873c1d2634ee93f31ce672700
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 2db77376a478d4d53a66254294c69b5e9a8cad556d7d0f1559556276afcc6cba
[INFO] running `Command { std: "docker" "start" "-a" "2db77376a478d4d53a66254294c69b5e9a8cad556d7d0f1559556276afcc6cba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::convert::TryInto`
[INFO] [stderr]  --> tests/perf_simple.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::convert::TryInto;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `linebuffer` (test "perf_simple") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linebuffer-b83e616d0cfae946)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::insert_elements_less_capacity ... ok
[INFO] [stdout] test tests::insert_elements_uneven_capacity ... ok
[INFO] [stdout] test tests::insert_elements_uneven_capacity_wrap ... ok
[INFO] [stdout] test tests::insert_empty ... ok
[INFO] [stdout] test tests::insert_overflow_border ... ok
[INFO] [stdout] test tests::insert_overflow_index ... ok
[INFO] [stdout] test tests::insert_overflow_full ... ok
[INFO] [stdout] test tests::insert_simple ... ok
[INFO] [stdout] test tests::iter_test_empty ... ok
[INFO] [stdout] test tests::iter_test_simple ... ok
[INFO] [stdout] test tests::iter_test_wrap ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/perf_simple.rs (/opt/rustwide/target/debug/deps/perf_simple-c9bab88731dadc8e)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test perf_from_file ... ignored
[INFO] [stdout] test perf_lines ... ignored
[INFO] [stdout] test perf_simple ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests linebuffer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.94s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2db77376a478d4d53a66254294c69b5e9a8cad556d7d0f1559556276afcc6cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2db77376a478d4d53a66254294c69b5e9a8cad556d7d0f1559556276afcc6cba", kill_on_drop: false }`
[INFO] [stdout] 2db77376a478d4d53a66254294c69b5e9a8cad556d7d0f1559556276afcc6cba