[INFO] fetching crate pbb_minigrep 0.1.0... [INFO] testing pbb_minigrep-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8 [INFO] extracting crate pbb_minigrep 0.1.0 into /workspace/builds/worker-2-tc2/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-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate pbb_minigrep 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c5583f98619c988ee8a8e2ce48dd189ca0dc39c6b244f83ce19e1c7ab03bab0e [INFO] running `Command { std: "docker" "start" "-a" "c5583f98619c988ee8a8e2ce48dd189ca0dc39c6b244f83ce19e1c7ab03bab0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c5583f98619c988ee8a8e2ce48dd189ca0dc39c6b244f83ce19e1c7ab03bab0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5583f98619c988ee8a8e2ce48dd189ca0dc39c6b244f83ce19e1c7ab03bab0e", kill_on_drop: false }` [INFO] [stdout] c5583f98619c988ee8a8e2ce48dd189ca0dc39c6b244f83ce19e1c7ab03bab0e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e6759a1a2135fb62be9721dcebadac0e390cbbda9e3b91e784f495da8d5245be [INFO] running `Command { std: "docker" "start" "-a" "e6759a1a2135fb62be9721dcebadac0e390cbbda9e3b91e784f495da8d5245be", kill_on_drop: false }` [INFO] [stderr] Compiling pbb_minigrep v0.1.0 (/opt/rustwide/workdir) [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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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 0.55s [INFO] running `Command { std: "docker" "inspect" "e6759a1a2135fb62be9721dcebadac0e390cbbda9e3b91e784f495da8d5245be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6759a1a2135fb62be9721dcebadac0e390cbbda9e3b91e784f495da8d5245be", kill_on_drop: false }` [INFO] [stdout] e6759a1a2135fb62be9721dcebadac0e390cbbda9e3b91e784f495da8d5245be [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a0e1cdee7def96a898221e0b51ed3dd7a30f33813ee29e55a6e0e951c9a3e298 [INFO] running `Command { std: "docker" "start" "-a" "a0e1cdee7def96a898221e0b51ed3dd7a30f33813ee29e55a6e0e951c9a3e298", kill_on_drop: false }` [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)]` (part of `#[warn(unused)]`) 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] [stderr] Compiling pbb_minigrep v0.1.0 (/opt/rustwide/workdir) [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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s [INFO] running `Command { std: "docker" "inspect" "a0e1cdee7def96a898221e0b51ed3dd7a30f33813ee29e55a6e0e951c9a3e298", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0e1cdee7def96a898221e0b51ed3dd7a30f33813ee29e55a6e0e951c9a3e298", kill_on_drop: false }` [INFO] [stdout] a0e1cdee7def96a898221e0b51ed3dd7a30f33813ee29e55a6e0e951c9a3e298 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5d1322401ef8f355e22ec86a4511b40e56215a298bc42ab84b0d511b5896abc5 [INFO] running `Command { std: "docker" "start" "-a" "5d1322401ef8f355e22ec86a4511b40e56215a298bc42ab84b0d511b5896abc5", kill_on_drop: false }` [INFO] [stderr] warning: struct `Counter` is never constructed [INFO] [stderr] --> src/lib.rs:133:8 [INFO] [stderr] | [INFO] [stderr] 133 | struct Counter { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> src/lib.rs:138:8 [INFO] [stderr] | [INFO] [stderr] 137 | impl Counter { [INFO] [stderr] | ------------ associated function in this implementation [INFO] [stderr] 138 | fn new() -> Counter { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: `pbb_minigrep` (lib) generated 2 warnings [INFO] [stderr] warning: function `simulated_expensive_calculation` is never used [INFO] [stderr] --> src/main.rs:20:4 [INFO] [stderr] | [INFO] [stderr] 20 | fn simulated_expensive_calculation(intensity: u32) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `Cacher` is never constructed [INFO] [stderr] --> src/main.rs:26:8 [INFO] [stderr] | [INFO] [stderr] 26 | struct Cacher [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `new` and `value` are never used [INFO] [stderr] --> src/main.rs:38:8 [INFO] [stderr] | [INFO] [stderr] 34 | / impl Cacher [INFO] [stderr] 35 | | where [INFO] [stderr] 36 | | T: Fn(u32) -> u32, [INFO] [stderr] | |______________________- associated items in this implementation [INFO] [stderr] 37 | { [INFO] [stderr] 38 | fn new(calculation: T) -> Cacher { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 45 | fn value(&mut self, arg: u32) -> u32 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `generate_workout` is never used [INFO] [stderr] --> src/main.rs:64:4 [INFO] [stderr] | [INFO] [stderr] 64 | fn generate_workout(intensity: u32, random_number: u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `pbb_minigrep` (bin "pbb_minigrep" test) generated 4 warnings [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/lib.rs:81:13 [INFO] [stderr] | [INFO] [stderr] 81 | let v2: Vec = v1.iter().map(|x| x + 1).collect(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `pbb_minigrep` (lib test) generated 1 warning (run `cargo fix --lib -p pbb_minigrep --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pbb_minigrep-fb476e6d03f6669d) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test tests::calling_next_directly ... ok [INFO] [stdout] test tests::iterator_demonstration ... ok [INFO] [stdout] test tests::one_result ... ok [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/pbb_minigrep-deea1ff4e924f677) [INFO] [stderr] Doc-tests pbb_minigrep [INFO] [stdout] test tests::using_other_iterator_trait_methods ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [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] [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" "5d1322401ef8f355e22ec86a4511b40e56215a298bc42ab84b0d511b5896abc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d1322401ef8f355e22ec86a4511b40e56215a298bc42ab84b0d511b5896abc5", kill_on_drop: false }` [INFO] [stdout] 5d1322401ef8f355e22ec86a4511b40e56215a298bc42ab84b0d511b5896abc5