[INFO] cloning repository https://github.com/wojciechmurimi/list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wojciechmurimi/list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwojciechmurimi%2Flist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwojciechmurimi%2Flist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e1e3919cd653335f6104d6e64055fbeb17f80dc
[INFO] testing wojciechmurimi/list against master#1ddedbaa5919b7b3e70d984660e21e844c615c97 for pr-128400-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwojciechmurimi%2Flist" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wojciechmurimi/list on toolchain 1ddedbaa5919b7b3e70d984660e21e844c615c97
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wojciechmurimi/list
[INFO] finished tweaking git repo https://github.com/wojciechmurimi/list
[INFO] tweaked toml for git repo https://github.com/wojciechmurimi/list written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wojciechmurimi/list already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dcf2ab34a6c35ff3194803983a1f6a1e484dab0f4804ee3783838f62ea0273c
[INFO] running `Command { std: "docker" "start" "-a" "9dcf2ab34a6c35ff3194803983a1f6a1e484dab0f4804ee3783838f62ea0273c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dcf2ab34a6c35ff3194803983a1f6a1e484dab0f4804ee3783838f62ea0273c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dcf2ab34a6c35ff3194803983a1f6a1e484dab0f4804ee3783838f62ea0273c", kill_on_drop: false }`
[INFO] [stdout] 9dcf2ab34a6c35ff3194803983a1f6a1e484dab0f4804ee3783838f62ea0273c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d8c14340d4cd893bd00157bd7505b020b2896607950c969fdfa16045f222b50
[INFO] running `Command { std: "docker" "start" "-a" "3d8c14340d4cd893bd00157bd7505b020b2896607950c969fdfa16045f222b50", kill_on_drop: false }`
[INFO] [stderr]    Compiling fplay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/linkedlist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fs::File,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linkedlist::LinkedList`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use linkedlist::LinkedList;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/linkedlist.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::Read,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `init_iter_markers` is never used
[INFO] [stdout]    --> src/linkedlist.rs:215:8
[INFO] [stdout]     |
[INFO] [stdout] 59  | impl<T: Default> LinkedList<T> {
[INFO] [stdout]     | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 215 |     fn init_iter_markers(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "3d8c14340d4cd893bd00157bd7505b020b2896607950c969fdfa16045f222b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d8c14340d4cd893bd00157bd7505b020b2896607950c969fdfa16045f222b50", kill_on_drop: false }`
[INFO] [stdout] 3d8c14340d4cd893bd00157bd7505b020b2896607950c969fdfa16045f222b50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34748f2533bfbe57abe5deb5d1007d2721f0860453ed79f5cccc25d540b877e8
[INFO] running `Command { std: "docker" "start" "-a" "34748f2533bfbe57abe5deb5d1007d2721f0860453ed79f5cccc25d540b877e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling fplay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/linkedlist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fs::File,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linkedlist::LinkedList`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use linkedlist::LinkedList;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/linkedlist.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::Read,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `init_iter_markers` is never used
[INFO] [stdout]    --> src/linkedlist.rs:215:8
[INFO] [stdout]     |
[INFO] [stdout] 59  | impl<T: Default> LinkedList<T> {
[INFO] [stdout]     | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 215 |     fn init_iter_markers(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/linkedlist.rs:448:9
[INFO] [stdout]     |
[INFO] [stdout] 448 |         list.backward();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 448 |         let _ = list.backward();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/linkedlist.rs:452:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |         list.forward();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 452 |         let _ = list.forward();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34748f2533bfbe57abe5deb5d1007d2721f0860453ed79f5cccc25d540b877e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34748f2533bfbe57abe5deb5d1007d2721f0860453ed79f5cccc25d540b877e8", kill_on_drop: false }`
[INFO] [stdout] 34748f2533bfbe57abe5deb5d1007d2721f0860453ed79f5cccc25d540b877e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7f4189ce0db9beffa0442027739e22f469abb7902c0a77d88533c93708627841
[INFO] running `Command { std: "docker" "start" "-a" "7f4189ce0db9beffa0442027739e22f469abb7902c0a77d88533c93708627841", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fs::File`
[INFO] [stderr]  --> src/linkedlist.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     fs::File,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `linkedlist::LinkedList`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use linkedlist::LinkedList;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `io::Read`
[INFO] [stderr]  --> src/linkedlist.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     io::Read,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `init_iter_markers` is never used
[INFO] [stderr]    --> src/linkedlist.rs:215:8
[INFO] [stderr]     |
[INFO] [stderr] 59  | impl<T: Default> LinkedList<T> {
[INFO] [stderr]     | ------------------------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 215 |     fn init_iter_markers(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/linkedlist.rs:448:9
[INFO] [stderr]     |
[INFO] [stderr] 448 |         list.backward();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 448 |         let _ = list.backward();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/linkedlist.rs:452:9
[INFO] [stderr]     |
[INFO] [stderr] 452 |         list.forward();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 452 |         let _ = list.forward();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fplay` (bin "fplay" test) generated 6 warnings (run `cargo fix --bin "fplay" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fplay-9948a0221ab9b623)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test linkedlist::tests::append ... ok
[INFO] [stdout] test linkedlist::tests::prepend ... ok
[INFO] [stdout] test linkedlist::tests::iterate_forward ... ok
[INFO] [stdout] test linkedlist::tests::iterate_backward ... ok
[INFO] [stdout] test linkedlist::tests::headeqcurr ... ok
[INFO] [stdout] test linkedlist::tests::edit ... ok
[INFO] [stdout] test linkedlist::tests::iteration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7f4189ce0db9beffa0442027739e22f469abb7902c0a77d88533c93708627841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f4189ce0db9beffa0442027739e22f469abb7902c0a77d88533c93708627841", kill_on_drop: false }`
[INFO] [stdout] 7f4189ce0db9beffa0442027739e22f469abb7902c0a77d88533c93708627841
[INFO] testing wojciechmurimi/list against try#33f1d8bb92813a1bfc23c093c9f443ab09290307 for pr-128400-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwojciechmurimi%2Flist" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wojciechmurimi/list on toolchain 33f1d8bb92813a1bfc23c093c9f443ab09290307
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wojciechmurimi/list
[INFO] finished tweaking git repo https://github.com/wojciechmurimi/list
[INFO] tweaked toml for git repo https://github.com/wojciechmurimi/list written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wojciechmurimi/list already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db373c7edf64c3cf200eb529bd8b190903625e0303da967c6539fd4146747166
[INFO] running `Command { std: "docker" "start" "-a" "db373c7edf64c3cf200eb529bd8b190903625e0303da967c6539fd4146747166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db373c7edf64c3cf200eb529bd8b190903625e0303da967c6539fd4146747166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db373c7edf64c3cf200eb529bd8b190903625e0303da967c6539fd4146747166", kill_on_drop: false }`
[INFO] [stdout] db373c7edf64c3cf200eb529bd8b190903625e0303da967c6539fd4146747166
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09703cef2ee63ec784ae1d7453e4af3ac448be0626aba426b10133bd26f2bac5
[INFO] running `Command { std: "docker" "start" "-a" "09703cef2ee63ec784ae1d7453e4af3ac448be0626aba426b10133bd26f2bac5", kill_on_drop: false }`
[INFO] [stderr]    Compiling fplay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/linkedlist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fs::File,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linkedlist::LinkedList`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use linkedlist::LinkedList;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/linkedlist.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::Read,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `init_iter_markers` is never used
[INFO] [stdout]    --> src/linkedlist.rs:215:8
[INFO] [stdout]     |
[INFO] [stdout] 59  | impl<T: Default> LinkedList<T> {
[INFO] [stdout]     | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 215 |     fn init_iter_markers(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "09703cef2ee63ec784ae1d7453e4af3ac448be0626aba426b10133bd26f2bac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09703cef2ee63ec784ae1d7453e4af3ac448be0626aba426b10133bd26f2bac5", kill_on_drop: false }`
[INFO] [stdout] 09703cef2ee63ec784ae1d7453e4af3ac448be0626aba426b10133bd26f2bac5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd544288fe6ad57027dae707c3ef34fb23359d81bccb2311428d343c3e14a083
[INFO] running `Command { std: "docker" "start" "-a" "dd544288fe6ad57027dae707c3ef34fb23359d81bccb2311428d343c3e14a083", kill_on_drop: false }`
[INFO] [stderr]    Compiling fplay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/linkedlist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fs::File,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linkedlist::LinkedList`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use linkedlist::LinkedList;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/linkedlist.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::Read,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `init_iter_markers` is never used
[INFO] [stdout]    --> src/linkedlist.rs:215:8
[INFO] [stdout]     |
[INFO] [stdout] 59  | impl<T: Default> LinkedList<T> {
[INFO] [stdout]     | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 215 |     fn init_iter_markers(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/linkedlist.rs:448:9
[INFO] [stdout]     |
[INFO] [stdout] 448 |         list.backward();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 448 |         let _ = list.backward();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/linkedlist.rs:452:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |         list.forward();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 452 |         let _ = list.forward();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "dd544288fe6ad57027dae707c3ef34fb23359d81bccb2311428d343c3e14a083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd544288fe6ad57027dae707c3ef34fb23359d81bccb2311428d343c3e14a083", kill_on_drop: false }`
[INFO] [stdout] dd544288fe6ad57027dae707c3ef34fb23359d81bccb2311428d343c3e14a083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6efacb72134d92bf59870198290d5b903e9a31e1ffccc4308abf7a4976327407
[INFO] running `Command { std: "docker" "start" "-a" "6efacb72134d92bf59870198290d5b903e9a31e1ffccc4308abf7a4976327407", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fs::File`
[INFO] [stderr]  --> src/linkedlist.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     fs::File,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `linkedlist::LinkedList`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use linkedlist::LinkedList;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `io::Read`
[INFO] [stderr]  --> src/linkedlist.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     io::Read,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `init_iter_markers` is never used
[INFO] [stderr]    --> src/linkedlist.rs:215:8
[INFO] [stderr]     |
[INFO] [stderr] 59  | impl<T: Default> LinkedList<T> {
[INFO] [stderr]     | ------------------------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 215 |     fn init_iter_markers(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/linkedlist.rs:448:9
[INFO] [stderr]     |
[INFO] [stderr] 448 |         list.backward();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 448 |         let _ = list.backward();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/linkedlist.rs:452:9
[INFO] [stderr]     |
[INFO] [stderr] 452 |         list.forward();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 452 |         let _ = list.forward();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fplay` (bin "fplay" test) generated 6 warnings (run `cargo fix --bin "fplay" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fplay-9948a0221ab9b623)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test linkedlist::tests::append ... ok
[INFO] [stdout] test linkedlist::tests::iteration ... ok
[INFO] [stdout] test linkedlist::tests::headeqcurr ... ok
[INFO] [stdout] test linkedlist::tests::iterate_backward ... ok
[INFO] [stdout] test linkedlist::tests::iterate_forward ... ok
[INFO] [stdout] test linkedlist::tests::edit ... ok
[INFO] [stdout] test linkedlist::tests::prepend ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6efacb72134d92bf59870198290d5b903e9a31e1ffccc4308abf7a4976327407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6efacb72134d92bf59870198290d5b903e9a31e1ffccc4308abf7a4976327407", kill_on_drop: false }`
[INFO] [stdout] 6efacb72134d92bf59870198290d5b903e9a31e1ffccc4308abf7a4976327407