[INFO] fetching crate fscan 0.2.0...
[INFO] testing fscan-0.2.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate fscan 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate fscan 0.2.0
[INFO] finished tweaking crates.io crate fscan 0.2.0
[INFO] tweaked toml for crates.io crate fscan 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fscan 0.2.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fscan 0.2.0 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46deee8bc0c2e7afab2936e3c87c7c644d4de5310bf0f552b84bb9128bd83748
[INFO] running `Command { std: "docker" "start" "-a" "46deee8bc0c2e7afab2936e3c87c7c644d4de5310bf0f552b84bb9128bd83748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46deee8bc0c2e7afab2936e3c87c7c644d4de5310bf0f552b84bb9128bd83748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46deee8bc0c2e7afab2936e3c87c7c644d4de5310bf0f552b84bb9128bd83748", kill_on_drop: false }`
[INFO] [stdout] 46deee8bc0c2e7afab2936e3c87c7c644d4de5310bf0f552b84bb9128bd83748
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f92d5b58116e78c96d4d2fd334096f2c4e5c37ea7d53e62ef912df0dc8dde2d
[INFO] running `Command { std: "docker" "start" "-a" "4f92d5b58116e78c96d4d2fd334096f2c4e5c37ea7d53e62ef912df0dc8dde2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling tabwriter v1.2.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling fscan v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/fscan/tree.rs:33:26
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn children<'a>(&'a self) -> Box<dyn iter::Iterator<Item = &FSNode> + 'a> {
[INFO] [stdout]    |                          ^^ the lifetime is named here             ------- the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn children<'a>(&'a self) -> Box<dyn iter::Iterator<Item = &'a FSNode> + 'a> {
[INFO] [stdout]    |                                                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.30s
[INFO] running `Command { std: "docker" "inspect" "4f92d5b58116e78c96d4d2fd334096f2c4e5c37ea7d53e62ef912df0dc8dde2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f92d5b58116e78c96d4d2fd334096f2c4e5c37ea7d53e62ef912df0dc8dde2d", kill_on_drop: false }`
[INFO] [stdout] 4f92d5b58116e78c96d4d2fd334096f2c4e5c37ea7d53e62ef912df0dc8dde2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e914b9e4a937f89052b077b44ec64384471b55a5271b1074301e448c835ad0d1
[INFO] running `Command { std: "docker" "start" "-a" "e914b9e4a937f89052b077b44ec64384471b55a5271b1074301e448c835ad0d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling fscan v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/fscan/tree.rs:33:26
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn children<'a>(&'a self) -> Box<dyn iter::Iterator<Item = &FSNode> + 'a> {
[INFO] [stdout]    |                          ^^ the lifetime is named here             ------- the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn children<'a>(&'a self) -> Box<dyn iter::Iterator<Item = &'a FSNode> + 'a> {
[INFO] [stdout]    |                                                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "e914b9e4a937f89052b077b44ec64384471b55a5271b1074301e448c835ad0d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e914b9e4a937f89052b077b44ec64384471b55a5271b1074301e448c835ad0d1", kill_on_drop: false }`
[INFO] [stdout] e914b9e4a937f89052b077b44ec64384471b55a5271b1074301e448c835ad0d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2487246155e11372e8984a3fe9a4ad256d5d31682c29aee735a62f04cf8735d8
[INFO] running `Command { std: "docker" "start" "-a" "2487246155e11372e8984a3fe9a4ad256d5d31682c29aee735a62f04cf8735d8", kill_on_drop: false }`
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/fscan/tree.rs:33:26
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn children<'a>(&'a self) -> Box<dyn iter::Iterator<Item = &FSNode> + 'a> {
[INFO] [stderr]    |                          ^^ the lifetime is named here             ------- the same lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn children<'a>(&'a self) -> Box<dyn iter::Iterator<Item = &'a FSNode> + 'a> {
[INFO] [stderr]    |                                                                     ++
[INFO] [stderr] 
[INFO] [stderr] warning: `fscan` (bin "fscan" test) generated 1 warning (run `cargo fix --bin "fscan" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fscan-4f84e95cb4a45e38)
[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" "2487246155e11372e8984a3fe9a4ad256d5d31682c29aee735a62f04cf8735d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2487246155e11372e8984a3fe9a4ad256d5d31682c29aee735a62f04cf8735d8", kill_on_drop: false }`
[INFO] [stdout] 2487246155e11372e8984a3fe9a4ad256d5d31682c29aee735a62f04cf8735d8