[INFO] fetching crate niko-cli 0.1.8...
[INFO] checking niko-cli-0.1.8 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate niko-cli 0.1.8 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate niko-cli 0.1.8 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate niko-cli 0.1.8
[INFO] finished tweaking crates.io crate niko-cli 0.1.8
[INFO] tweaked toml for crates.io crate niko-cli 0.1.8 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate niko-cli 0.1.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hyper-staticfile v0.5.3
[INFO] [stderr]   Downloaded filetime v0.2.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 206c61563d2d4ce46ff9836cd0ae42d0001e9ff4cf8d719675fe5c402bbb09f1
[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" "206c61563d2d4ce46ff9836cd0ae42d0001e9ff4cf8d719675fe5c402bbb09f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "206c61563d2d4ce46ff9836cd0ae42d0001e9ff4cf8d719675fe5c402bbb09f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206c61563d2d4ce46ff9836cd0ae42d0001e9ff4cf8d719675fe5c402bbb09f1", kill_on_drop: false }`
[INFO] [stdout] 206c61563d2d4ce46ff9836cd0ae42d0001e9ff4cf8d719675fe5c402bbb09f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--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] 3ad30d20d9b95e7c17e006303aa485301e4486f0e7713265fe99c7f40266fb7f
[INFO] running `Command { std: "docker" "start" "-a" "3ad30d20d9b95e7c17e006303aa485301e4486f0e7713265fe99c7f40266fb7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
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[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libssh2-sys v0.2.18
[INFO] [stderr]    Compiling libgit2-sys v0.12.9+1.0.1
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[INFO] [stderr]     Checking tokio v0.2.22
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[INFO] [stderr]     Checking thiserror v1.0.20
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[INFO] [stderr]     Checking futures-util v0.3.5
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[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking hyper-staticfile v0.5.3
[INFO] [stderr]     Checking niko-cli v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `watcher`
[INFO] [stdout]   --> src/main.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |             let watcher = watcher::create_watcher(&path, debounce).expect("could not initialize watcher");
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_watcher`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/watcher.rs:49:48
[INFO] [stdout]    |
[INFO] [stdout] 49 |                         DebouncedEvent::Rename(from, to) => {
[INFO] [stdout]    |                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/watcher.rs:49:54
[INFO] [stdout]    |
[INFO] [stdout] 49 |                         DebouncedEvent::Rename(from, to) => {
[INFO] [stdout]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `watcher`
[INFO] [stdout]  --> src/watcher.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     watcher: RecommendedWatcher,
[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] [stdout] warning: unused variable: `watcher`
[INFO] [stdout]   --> src/main.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |             let watcher = watcher::create_watcher(&path, debounce).expect("could not initialize watcher");
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_watcher`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/watcher.rs:49:48
[INFO] [stdout]    |
[INFO] [stdout] 49 |                         DebouncedEvent::Rename(from, to) => {
[INFO] [stdout]    |                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/watcher.rs:49:54
[INFO] [stdout]    |
[INFO] [stdout] 49 |                         DebouncedEvent::Rename(from, to) => {
[INFO] [stdout]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `watcher`
[INFO] [stdout]  --> src/watcher.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     watcher: RecommendedWatcher,
[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 [unoptimized + debuginfo] target(s) in 2m 22s
[INFO] running `Command { std: "docker" "inspect" "3ad30d20d9b95e7c17e006303aa485301e4486f0e7713265fe99c7f40266fb7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad30d20d9b95e7c17e006303aa485301e4486f0e7713265fe99c7f40266fb7f", kill_on_drop: false }`
[INFO] [stdout] 3ad30d20d9b95e7c17e006303aa485301e4486f0e7713265fe99c7f40266fb7f