[INFO] fetching crate chainlink 0.1.0...
[INFO] testing chainlink-0.1.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate chainlink 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate chainlink 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 chainlink 0.1.0
[INFO] finished tweaking crates.io crate chainlink 0.1.0
[INFO] tweaked toml for crates.io crate chainlink 0.1.0 written to /workspace/builds/worker-5/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-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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97d32bd4b36d6f2e400eef833c4b18efb2dfeaddc78fc1f420782335595ebbe2
[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" "97d32bd4b36d6f2e400eef833c4b18efb2dfeaddc78fc1f420782335595ebbe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97d32bd4b36d6f2e400eef833c4b18efb2dfeaddc78fc1f420782335595ebbe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97d32bd4b36d6f2e400eef833c4b18efb2dfeaddc78fc1f420782335595ebbe2", kill_on_drop: false }`
[INFO] [stdout] 97d32bd4b36d6f2e400eef833c4b18efb2dfeaddc78fc1f420782335595ebbe2
[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" "+62efba8a050c64249dab942951bb28f710208bc8" "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] d4810168dee781dc23da5baad09a6af7bb5f2d12fc9f4c7965a8ae307e9dc9f4
[INFO] running `Command { std: "docker" "start" "-a" "d4810168dee781dc23da5baad09a6af7bb5f2d12fc9f4c7965a8ae307e9dc9f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling thunderdome v0.4.2
[INFO] [stderr]    Compiling chainlink v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `list`
[INFO] [stdout]   --> src/iter_links.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     list: &'a mut LinkedList<T>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fwd_pos`
[INFO] [stdout]   --> src/iter_links.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fwd_pos: Option<Index>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rev_pos`
[INFO] [stdout]   --> src/iter_links.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     rev_pos: Option<Index>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "d4810168dee781dc23da5baad09a6af7bb5f2d12fc9f4c7965a8ae307e9dc9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4810168dee781dc23da5baad09a6af7bb5f2d12fc9f4c7965a8ae307e9dc9f4", kill_on_drop: false }`
[INFO] [stdout] d4810168dee781dc23da5baad09a6af7bb5f2d12fc9f4c7965a8ae307e9dc9f4
[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" "+62efba8a050c64249dab942951bb28f710208bc8" "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] 828b48ec908a838b3c6f640ce02a5702c38f8824531e8ba73527510c8575fb26
[INFO] running `Command { std: "docker" "start" "-a" "828b48ec908a838b3c6f640ce02a5702c38f8824531e8ba73527510c8575fb26", kill_on_drop: false }`
[INFO] [stderr]    Compiling chainlink v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `list`
[INFO] [stdout]   --> src/iter_links.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     list: &'a mut LinkedList<T>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fwd_pos`
[INFO] [stdout]   --> src/iter_links.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fwd_pos: Option<Index>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rev_pos`
[INFO] [stdout]   --> src/iter_links.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     rev_pos: Option<Index>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `list`
[INFO] [stdout]   --> src/iter_links.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     list: &'a mut LinkedList<T>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fwd_pos`
[INFO] [stdout]   --> src/iter_links.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fwd_pos: Option<Index>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rev_pos`
[INFO] [stdout]   --> src/iter_links.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     rev_pos: Option<Index>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "828b48ec908a838b3c6f640ce02a5702c38f8824531e8ba73527510c8575fb26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "828b48ec908a838b3c6f640ce02a5702c38f8824531e8ba73527510c8575fb26", kill_on_drop: false }`
[INFO] [stdout] 828b48ec908a838b3c6f640ce02a5702c38f8824531e8ba73527510c8575fb26
[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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cc7e5f849a11060257fd4ec96c9f66703f4dcc11f7eb52c4bb6c7a75dac301bc
[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" "cc7e5f849a11060257fd4ec96c9f66703f4dcc11f7eb52c4bb6c7a75dac301bc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `list`
[INFO] [stdout] running 1 test
[INFO] [stderr]   --> src/iter_links.rs:58:5
[INFO] [stdout] test tests::size_of_node ... ok
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 58 |     list: &'a mut LinkedList<T>,
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `fwd_pos`
[INFO] [stderr]   --> src/iter_links.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fwd_pos: Option<Index>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rev_pos`
[INFO] [stderr]   --> src/iter_links.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     rev_pos: Option<Index>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `chainlink` (lib) generated 3 warnings
[INFO] [stderr] warning: `chainlink` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chainlink-49f51c29fe24d54e)
[INFO] [stderr]    Doc-tests chainlink
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test src/lib.rs - LinkedList<T>::len (line 321) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::pop_head (line 186) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::iter_fast_mut (line 444) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::iter_links (line 360) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::get (line 97) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::is_empty (line 340) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::push_head (line 211) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::pop_tail (line 199) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::iter_links (line 376) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::head (line 129) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::head_mut (line 144) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::new (line 78) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::iter_fast (line 424) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::into_vec (line 398) ... ok
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::get_mut (line 111) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::tail_mut (line 173) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::tail (line 158) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::push_tail (line 246) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::remove (line 282) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cc7e5f849a11060257fd4ec96c9f66703f4dcc11f7eb52c4bb6c7a75dac301bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc7e5f849a11060257fd4ec96c9f66703f4dcc11f7eb52c4bb6c7a75dac301bc", kill_on_drop: false }`
[INFO] [stdout] cc7e5f849a11060257fd4ec96c9f66703f4dcc11f7eb52c4bb6c7a75dac301bc