[INFO] cloning repository https://github.com/harshasrisri/crust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harshasrisri/crust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharshasrisri%2Fcrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharshasrisri%2Fcrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3c78b771ad886375f98b7ccb470303839156374
[INFO] testing harshasrisri/crust against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharshasrisri%2Fcrust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/harshasrisri/crust on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/harshasrisri/crust
[INFO] finished tweaking git repo https://github.com/harshasrisri/crust
[INFO] tweaked toml for git repo https://github.com/harshasrisri/crust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/harshasrisri/crust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.8
[INFO] [stderr]   Downloaded proc-macro-error v0.4.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c14a5165903b18bb0a47597086c7465226d73f1799d3c22c8756a6b5e7f4fc41
[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" "c14a5165903b18bb0a47597086c7465226d73f1799d3c22c8756a6b5e7f4fc41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c14a5165903b18bb0a47597086c7465226d73f1799d3c22c8756a6b5e7f4fc41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c14a5165903b18bb0a47597086c7465226d73f1799d3c22c8756a6b5e7f4fc41", kill_on_drop: false }`
[INFO] [stdout] c14a5165903b18bb0a47597086c7465226d73f1799d3c22c8756a6b5e7f4fc41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] cb52b1dc3198bcbec641ba45db276a0a533a3b2069e67347d72b15ad3f267202
[INFO] running `Command { std: "docker" "start" "-a" "cb52b1dc3198bcbec641ba45db276a0a533a3b2069e67347d72b15ad3f267202", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.8
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.8
[INFO] [stderr]    Compiling structopt-derive v0.4.2
[INFO] [stderr]    Compiling structopt v0.3.9
[INFO] [stderr]    Compiling slice v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `fields`
[INFO] [stdout]  --> src/fields.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fields: Vec<usize>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 36.55s
[INFO] running `Command { std: "docker" "inspect" "cb52b1dc3198bcbec641ba45db276a0a533a3b2069e67347d72b15ad3f267202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb52b1dc3198bcbec641ba45db276a0a533a3b2069e67347d72b15ad3f267202", kill_on_drop: false }`
[INFO] [stdout] cb52b1dc3198bcbec641ba45db276a0a533a3b2069e67347d72b15ad3f267202
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d12897168b8b30e1f1213c9752514eecdcc244880720388a86a517b4904abdee
[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" "d12897168b8b30e1f1213c9752514eecdcc244880720388a86a517b4904abdee", kill_on_drop: false }`
[INFO] [stderr]    Compiling slice v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `fields`
[INFO] [stdout]  --> src/fields.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fields: Vec<usize>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fields`
[INFO] [stdout]  --> src/fields.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fields: Vec<usize>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 3.24s
[INFO] running `Command { std: "docker" "inspect" "d12897168b8b30e1f1213c9752514eecdcc244880720388a86a517b4904abdee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d12897168b8b30e1f1213c9752514eecdcc244880720388a86a517b4904abdee", kill_on_drop: false }`
[INFO] [stdout] d12897168b8b30e1f1213c9752514eecdcc244880720388a86a517b4904abdee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", 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] 087c7f575c6debb9b313373802a8c393dd50b77d92ea91d7d7f0b47e1a2fcaca
[INFO] running `Command { std: "docker" "start" "-a" "087c7f575c6debb9b313373802a8c393dd50b77d92ea91d7d7f0b47e1a2fcaca", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `fields`
[INFO] [stderr]  --> src/fields.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     fields: Vec<usize>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `slice` (lib) generated 1 warning
[INFO] [stderr] warning: `slice` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/slice-fec2f3564060bf5b)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/slice-5290a2db463b72b6)
[INFO] [stderr]      Running tests/slice.rs (/opt/rustwide/target/debug/deps/slice-bc9aba5037652330)
[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 22 tests
[INFO] [stdout] test test_field_neg_invalid_ranges_in_end ... ok
[INFO] [stdout] test test_field_neg_all_commas ... ok
[INFO] [stdout] test test_field_complex_spec ... ok
[INFO] [stdout] test test_field_overlapping_ranges ... ok
[INFO] [stdout] test test_field_neg_two_trailing_hyphens ... ok
[INFO] [stdout] test test_field_range_and_numbers ... ok
[INFO] [stdout] test test_field_single_trailing_hyphen ... ok
[INFO] [stdout] test test_field_single_leading_hyphen ... ok
[INFO] [stdout] test test_field_neg_more_than_two_parts_in_range ... ok
[INFO] [stdout] test test_field_ordered_ranges ... ok
[INFO] [stdout] test test_field_single_range ... ok
[INFO] [stdout] test test_field_neg_open_ranges_in_middle ... ok
[INFO] [stdout] test test_field_neg_all_hyphens ... ok
[INFO] [stdout] test test_field_unordered_ranges ... ok
[INFO] [stdout] test test_field_unordered_scatterred_numbers ... ok
[INFO] [stdout] test test_field_neg_empty_field_spec ... ok
[INFO] [stdout] test test_field_ordered_scatterred_numbers ... ok
[INFO] [stdout] test test_field_neg_two_hyphens_in_range ... ok
[INFO] [stdout] test test_field_range_and_numbers_open ... ok
[INFO] [stdout] test test_field_neg_two_leading_hyphens ... ok
[INFO] [stdout] test test_field_neg_invalid_ranges_in_start ... ok
[INFO] [stdout] test test_field_simple_sequence ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slice
[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" "087c7f575c6debb9b313373802a8c393dd50b77d92ea91d7d7f0b47e1a2fcaca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "087c7f575c6debb9b313373802a8c393dd50b77d92ea91d7d7f0b47e1a2fcaca", kill_on_drop: false }`
[INFO] [stdout] 087c7f575c6debb9b313373802a8c393dd50b77d92ea91d7d7f0b47e1a2fcaca