[INFO] fetching crate i3-autolayout 0.2.3... [INFO] checking i3-autolayout-0.2.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate i3-autolayout 0.2.3 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate i3-autolayout 0.2.3 [INFO] finished tweaking crates.io crate i3-autolayout 0.2.3 [INFO] tweaked toml for crates.io crate i3-autolayout 0.2.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate i3-autolayout 0.2.3 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate i3-autolayout 0.2.3 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cd774ad5d12f5ee8b89b0216255fa807b3342b722d0ce0cf4d4897f5baea78f2 [INFO] running `Command { std: "docker" "start" "-a" "cd774ad5d12f5ee8b89b0216255fa807b3342b722d0ce0cf4d4897f5baea78f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd774ad5d12f5ee8b89b0216255fa807b3342b722d0ce0cf4d4897f5baea78f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd774ad5d12f5ee8b89b0216255fa807b3342b722d0ce0cf4d4897f5baea78f2", kill_on_drop: false }` [INFO] [stdout] cd774ad5d12f5ee8b89b0216255fa807b3342b722d0ce0cf4d4897f5baea78f2 [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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d2edce4368e15a15b387a9273d38d224f7ef013f35f26ec740dc18f7c92164ce [INFO] running `Command { std: "docker" "start" "-a" "d2edce4368e15a15b387a9273d38d224f7ef013f35f26ec740dc18f7c92164ce", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling serde_derive v1.0.144 [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling serde_json v1.0.85 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Compiling lexical-core v0.7.6 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking indexmap v1.9.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking ordered-float v2.10.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs-sys v0.3.7 [INFO] [stderr] Compiling anyhow v1.0.64 [INFO] [stderr] Checking rust-ini v0.13.0 [INFO] [stderr] Checking os_str_bytes v6.3.0 [INFO] [stderr] Checking tint v1.0.1 [INFO] [stderr] Checking directories v4.0.1 [INFO] [stderr] Checking once_cell v1.14.0 [INFO] [stderr] Checking petgraph v0.6.2 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking aho-corasick v0.7.19 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking serde-hjson v0.9.1 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling serde_repr v0.1.9 [INFO] [stderr] Compiling clap_derive v3.2.18 [INFO] [stderr] Checking clap v3.2.20 [INFO] [stderr] Checking toml v0.5.9 [INFO] [stderr] Checking serde-value v0.7.0 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking i3ipc-types v0.15.0 [INFO] [stderr] Checking config v0.11.0 [INFO] [stderr] Checking ptree v0.4.0 [INFO] [stderr] Checking i3_ipc v0.15.0 [INFO] [stderr] Checking i3-autolayout v0.2.3 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:87:5 [INFO] [stdout] | [INFO] [stdout] 87 | file_layout: Option, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:106:5 [INFO] [stdout] | [INFO] [stdout] 106 | output: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:118:5 [INFO] [stdout] | [INFO] [stdout] 118 | input: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/print_tree.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | fn children(&self) -> Cow<[Self::Child]> { [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] 56 | fn children(&self) -> Cow<'_, [Self::Child]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `i3-autolayout` (bin "i3-autolayout") due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:87:5 [INFO] [stdout] | [INFO] [stdout] 87 | file_layout: Option, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:106:5 [INFO] [stdout] | [INFO] [stdout] 106 | output: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:118:5 [INFO] [stdout] | [INFO] [stdout] 118 | input: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/print_tree.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | fn children(&self) -> Cow<[Self::Child]> { [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] 56 | fn children(&self) -> Cow<'_, [Self::Child]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `i3-autolayout` (bin "i3-autolayout" test) due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "d2edce4368e15a15b387a9273d38d224f7ef013f35f26ec740dc18f7c92164ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d2edce4368e15a15b387a9273d38d224f7ef013f35f26ec740dc18f7c92164ce", kill_on_drop: false }` [INFO] [stdout] d2edce4368e15a15b387a9273d38d224f7ef013f35f26ec740dc18f7c92164ce