[INFO] cloning repository https://github.com/t-desmond/file_system_simulation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/t-desmond/file_system_simulation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft-desmond%2Ffile_system_simulation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft-desmond%2Ffile_system_simulation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 21101e119c48876e204e909d55f6033a22d3aed0
[INFO] testing t-desmond/file_system_simulation against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft-desmond%2Ffile_system_simulation" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/t-desmond/file_system_simulation
[INFO] finished tweaking git repo https://github.com/t-desmond/file_system_simulation
[INFO] tweaked toml for git repo https://github.com/t-desmond/file_system_simulation written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/t-desmond/file_system_simulation on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/t-desmond/file_system_simulation 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2679bc940bcf5c261e2cf02928e2b150117b6596feed8c73cf95b1efc6723b2
[INFO] running `Command { std: "docker" "start" "-a" "c2679bc940bcf5c261e2cf02928e2b150117b6596feed8c73cf95b1efc6723b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2679bc940bcf5c261e2cf02928e2b150117b6596feed8c73cf95b1efc6723b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2679bc940bcf5c261e2cf02928e2b150117b6596feed8c73cf95b1efc6723b2", kill_on_drop: false }`
[INFO] [stdout] c2679bc940bcf5c261e2cf02928e2b150117b6596feed8c73cf95b1efc6723b2
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 048886b493181dc55623e09d4ebe58e73bf2f3700f11c436180648c3de6c3d42
[INFO] running `Command { std: "docker" "start" "-a" "048886b493181dc55623e09d4ebe58e73bf2f3700f11c436180648c3de6c3d42", kill_on_drop: false }`
[INFO] [stderr]    Compiling file_system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `FileSystemItem` is never used
[INFO] [stdout]  --> src/enums.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum FileSystemItem {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_size` is never used
[INFO] [stdout]  --> src/traits/file_system_item.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait FileSystemItem: Debug {
[INFO] [stdout]   |           -------------- method in this trait
[INFO] [stdout] 4 |   fn get_size(&self) -> usize;
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/folder.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn iter(&self) -> FolderIterator {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the 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: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn iter(&self) -> FolderIterator<'_> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "048886b493181dc55623e09d4ebe58e73bf2f3700f11c436180648c3de6c3d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "048886b493181dc55623e09d4ebe58e73bf2f3700f11c436180648c3de6c3d42", kill_on_drop: false }`
[INFO] [stdout] 048886b493181dc55623e09d4ebe58e73bf2f3700f11c436180648c3de6c3d42
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 354ed4393efc57e2a3aee907719e7527eaec8d254753a713cbd23cb1754981fc
[INFO] running `Command { std: "docker" "start" "-a" "354ed4393efc57e2a3aee907719e7527eaec8d254753a713cbd23cb1754981fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling file_system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `FileSystemItem` is never used
[INFO] [stdout]  --> src/enums.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum FileSystemItem {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_size` is never used
[INFO] [stdout]  --> src/traits/file_system_item.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait FileSystemItem: Debug {
[INFO] [stdout]   |           -------------- method in this trait
[INFO] [stdout] 4 |   fn get_size(&self) -> usize;
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/folder.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn iter(&self) -> FolderIterator {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the 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: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn iter(&self) -> FolderIterator<'_> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "354ed4393efc57e2a3aee907719e7527eaec8d254753a713cbd23cb1754981fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "354ed4393efc57e2a3aee907719e7527eaec8d254753a713cbd23cb1754981fc", kill_on_drop: false }`
[INFO] [stdout] 354ed4393efc57e2a3aee907719e7527eaec8d254753a713cbd23cb1754981fc
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 909ece0080c94076e5e3b652afce8a2e6cbe6a8ed4f48429c5c5014f059b91ca
[INFO] running `Command { std: "docker" "start" "-a" "909ece0080c94076e5e3b652afce8a2e6cbe6a8ed4f48429c5c5014f059b91ca", kill_on_drop: false }`
[INFO] [stderr] warning: enum `FileSystemItem` is never used
[INFO] [stderr]  --> src/enums.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub enum FileSystemItem {
[INFO] [stderr]   |          ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_size` is never used
[INFO] [stderr]  --> src/traits/file_system_item.rs:4:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub trait FileSystemItem: Debug {
[INFO] [stderr]   |           -------------- method in this trait
[INFO] [stderr] 4 |   fn get_size(&self) -> usize;
[INFO] [stderr]   |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/folder.rs:20:17
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn iter(&self) -> FolderIterator {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the 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: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn iter(&self) -> FolderIterator<'_> {
[INFO] [stderr]    |                                         ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `file_system` (bin "file_system" test) generated 3 warnings (run `cargo fix --bin "file_system" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/file_system-b84b970d761f4a9b)
[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" "909ece0080c94076e5e3b652afce8a2e6cbe6a8ed4f48429c5c5014f059b91ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "909ece0080c94076e5e3b652afce8a2e6cbe6a8ed4f48429c5c5014f059b91ca", kill_on_drop: false }`
[INFO] [stdout] 909ece0080c94076e5e3b652afce8a2e6cbe6a8ed4f48429c5c5014f059b91ca