[INFO] fetching crate pbb_minigrep 0.1.0... [INFO] checking pbb_minigrep-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate pbb_minigrep 0.1.0 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate pbb_minigrep 0.1.0 [INFO] finished tweaking crates.io crate pbb_minigrep 0.1.0 [INFO] tweaked toml for crates.io crate pbb_minigrep 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate pbb_minigrep 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate pbb_minigrep 0.1.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 49dd000075a7a6dd74ebc44ddb402f7b76b7d83a9e07f628b57d2ace0199d9bc [INFO] running `Command { std: "docker" "start" "-a" "49dd000075a7a6dd74ebc44ddb402f7b76b7d83a9e07f628b57d2ace0199d9bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "49dd000075a7a6dd74ebc44ddb402f7b76b7d83a9e07f628b57d2ace0199d9bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49dd000075a7a6dd74ebc44ddb402f7b76b7d83a9e07f628b57d2ace0199d9bc", kill_on_drop: false }` [INFO] [stdout] 49dd000075a7a6dd74ebc44ddb402f7b76b7d83a9e07f628b57d2ace0199d9bc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a4d1fbfec6606a78eff5729df59b092a2b8f915e8cd02ba353662c3dd6e11d0f [INFO] running `Command { std: "docker" "start" "-a" "a4d1fbfec6606a78eff5729df59b092a2b8f915e8cd02ba353662c3dd6e11d0f", kill_on_drop: false }` [INFO] [stderr] Checking pbb_minigrep v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `v2` [INFO] [stdout] --> src/lib.rs:81:13 [INFO] [stdout] | [INFO] [stdout] 81 | let v2: Vec = v1.iter().map(|x| x + 1).collect(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Counter` is never constructed [INFO] [stdout] --> src/lib.rs:133:8 [INFO] [stdout] | [INFO] [stdout] 133 | struct Counter { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/lib.rs:138:8 [INFO] [stdout] | [INFO] [stdout] 137 | impl Counter { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 138 | fn new() -> Counter { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `simulated_expensive_calculation` is never used [INFO] [stdout] --> src/main.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn simulated_expensive_calculation(intensity: u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Cacher` is never constructed [INFO] [stdout] --> src/main.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct Cacher [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `value` are never used [INFO] [stdout] --> src/main.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 34 | / impl Cacher [INFO] [stdout] 35 | | where [INFO] [stdout] 36 | | T: Fn(u32) -> u32, [INFO] [stdout] | |______________________- associated items in this implementation [INFO] [stdout] 37 | { [INFO] [stdout] 38 | fn new(calculation: T) -> Cacher { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | fn value(&mut self, arg: u32) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_workout` is never used [INFO] [stdout] --> src/main.rs:64:4 [INFO] [stdout] | [INFO] [stdout] 64 | fn generate_workout(intensity: u32, random_number: u32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `simulated_expensive_calculation` is never used [INFO] [stdout] --> src/main.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn simulated_expensive_calculation(intensity: u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Cacher` is never constructed [INFO] [stdout] --> src/main.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct Cacher [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `value` are never used [INFO] [stdout] --> src/main.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 34 | / impl Cacher [INFO] [stdout] 35 | | where [INFO] [stdout] 36 | | T: Fn(u32) -> u32, [INFO] [stdout] | |______________________- associated items in this implementation [INFO] [stdout] 37 | { [INFO] [stdout] 38 | fn new(calculation: T) -> Cacher { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | fn value(&mut self, arg: u32) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_workout` is never used [INFO] [stdout] --> src/main.rs:64:4 [INFO] [stdout] | [INFO] [stdout] 64 | fn generate_workout(intensity: u32, random_number: u32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s [INFO] running `Command { std: "docker" "inspect" "a4d1fbfec6606a78eff5729df59b092a2b8f915e8cd02ba353662c3dd6e11d0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4d1fbfec6606a78eff5729df59b092a2b8f915e8cd02ba353662c3dd6e11d0f", kill_on_drop: false }` [INFO] [stdout] a4d1fbfec6606a78eff5729df59b092a2b8f915e8cd02ba353662c3dd6e11d0f