[INFO] fetching crate noteref 0.9.1...
[INFO] testing noteref-0.9.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate noteref 0.9.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate noteref 0.9.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate noteref 0.9.1
[INFO] finished tweaking crates.io crate noteref 0.9.1
[INFO] tweaked toml for crates.io crate noteref 0.9.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 762ca43125796dba7ac50ea7f245cc4328131d78113ef1e972bd6f343cba2ab8
[INFO] running `Command { std: "docker" "start" "-a" "762ca43125796dba7ac50ea7f245cc4328131d78113ef1e972bd6f343cba2ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "762ca43125796dba7ac50ea7f245cc4328131d78113ef1e972bd6f343cba2ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "762ca43125796dba7ac50ea7f245cc4328131d78113ef1e972bd6f343cba2ab8", kill_on_drop: false }`
[INFO] [stdout] 762ca43125796dba7ac50ea7f245cc4328131d78113ef1e972bd6f343cba2ab8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a007cf567c1134df2d0d18b596568bba66893d1c1472039a0b9cc76b2720d564
[INFO] running `Command { std: "docker" "start" "-a" "a007cf567c1134df2d0d18b596568bba66893d1c1472039a0b9cc76b2720d564", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling globset v0.4.6
[INFO] [stderr]    Compiling ignore v0.4.17
[INFO] [stderr]    Compiling noteref v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/walk.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut possible_file = File::open(dir_entry.path());
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.48s
[INFO] running `Command { std: "docker" "inspect" "a007cf567c1134df2d0d18b596568bba66893d1c1472039a0b9cc76b2720d564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a007cf567c1134df2d0d18b596568bba66893d1c1472039a0b9cc76b2720d564", kill_on_drop: false }`
[INFO] [stdout] a007cf567c1134df2d0d18b596568bba66893d1c1472039a0b9cc76b2720d564
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b1a4c84769b12bcce09acadd72dec8b53b79130e1806e5a1ecc8151d65855e99
[INFO] running `Command { std: "docker" "start" "-a" "b1a4c84769b12bcce09acadd72dec8b53b79130e1806e5a1ecc8151d65855e99", kill_on_drop: false }`
[INFO] [stderr]    Compiling noteref v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/walk.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut possible_file = File::open(dir_entry.path());
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` 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 3.23s
[INFO] running `Command { std: "docker" "inspect" "b1a4c84769b12bcce09acadd72dec8b53b79130e1806e5a1ecc8151d65855e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1a4c84769b12bcce09acadd72dec8b53b79130e1806e5a1ecc8151d65855e99", kill_on_drop: false }`
[INFO] [stdout] b1a4c84769b12bcce09acadd72dec8b53b79130e1806e5a1ecc8151d65855e99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a586419d575a6ce552a9f4be60d6bb812c62d7188c498b1246b74845f8d87129
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a586419d575a6ce552a9f4be60d6bb812c62d7188c498b1246b74845f8d87129", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/walk.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let mut possible_file = File::open(dir_entry.path());
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/noteref-74ac3e1be25040f5
[INFO] [stdout] running 15 tests
[INFO] [stdout] test duplicates::tests::check_no_dupes ... ok
[INFO] [stdout] test citations::tests::check_empty ... ok
[INFO] [stdout] test duplicates::tests::check_empty ... ok
[INFO] [stdout] test citations::tests::check_missing ... ok
[INFO] [stdout] test count::tests::count_two ... ok
[INFO] [stdout] test tag::tests::parse_empty ... ok
[INFO] [stdout] test tag::tests::parse_reference_basic ... ok
[INFO] [stdout] test count::tests::count_one ... ok
[INFO] [stdout] test citations::tests::check_ok ... ok
[INFO] [stdout] test count::tests::count_zero ... ok
[INFO] [stdout] test duplicates::tests::check_dupes ... ok
[INFO] [stdout] test tag::tests::parse_multiple_lines ... ok
[INFO] [stdout] test tag::tests::parse_multiple_per_line ... ok
[INFO] [stdout] test tag::tests::parse_note_basic ... ok
[INFO] [stdout] test tag::tests::parse_whitespace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a586419d575a6ce552a9f4be60d6bb812c62d7188c498b1246b74845f8d87129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a586419d575a6ce552a9f4be60d6bb812c62d7188c498b1246b74845f8d87129", kill_on_drop: false }`
[INFO] [stdout] a586419d575a6ce552a9f4be60d6bb812c62d7188c498b1246b74845f8d87129