[INFO] fetching crate amber 0.6.0... [INFO] checking amber-0.6.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate amber 0.6.0 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate amber 0.6.0 [INFO] finished tweaking crates.io crate amber 0.6.0 [INFO] tweaked toml for crates.io crate amber 0.6.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate amber 0.6.0 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 amber 0.6.0 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] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ctrlc v3.4.2 [INFO] [stderr] Downloaded crossbeam-queue v0.3.10 [INFO] [stderr] Downloaded getch v0.3.1 [INFO] [stderr] Downloaded crossbeam v0.8.3 [INFO] [stderr] Downloaded rlibc v1.0.0 [INFO] [stderr] Downloaded crossbeam-channel v0.5.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 26203186e985264bb23c0119d4e2ffce0823045acc6f28d1e53e6da1c93a008a [INFO] running `Command { std: "docker" "start" "-a" "26203186e985264bb23c0119d4e2ffce0823045acc6f28d1e53e6da1c93a008a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "26203186e985264bb23c0119d4e2ffce0823045acc6f28d1e53e6da1c93a008a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26203186e985264bb23c0119d4e2ffce0823045acc6f28d1e53e6da1c93a008a", kill_on_drop: false }` [INFO] [stdout] 26203186e985264bb23c0119d4e2ffce0823045acc6f28d1e53e6da1c93a008a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8c26b92e10a61676872660641b948095f87c76e975817ad785caba7396b44ce2 [INFO] running `Command { std: "docker" "start" "-a" "8c26b92e10a61676872660641b948095f87c76e975817ad785caba7396b44ce2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.150 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.70 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling crossbeam-utils v0.8.18 [INFO] [stderr] Compiling serde v1.0.193 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking bitflags v2.4.1 [INFO] [stderr] Checking memchr v2.6.4 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking equivalent v1.0.1 [INFO] [stderr] Compiling rustix v0.38.25 [INFO] [stderr] Compiling unicode-segmentation v1.10.1 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking linux-raw-sys v0.4.11 [INFO] [stderr] Checking powerfmt v0.2.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking option-ext v0.2.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking winnow v0.5.19 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking deranged v0.3.9 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking time-core v0.1.2 [INFO] [stderr] Checking fastrand v2.0.1 [INFO] [stderr] Checking rlibc v1.0.0 [INFO] [stderr] Checking glob v0.3.1 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking indexmap v2.1.0 [INFO] [stderr] Compiling syn v2.0.39 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Checking crossbeam-epoch v0.9.17 [INFO] [stderr] Checking crossbeam-channel v0.5.10 [INFO] [stderr] Checking crossbeam-queue v0.3.10 [INFO] [stderr] Checking time v0.3.31 [INFO] [stderr] Checking crossbeam-deque v0.8.4 [INFO] [stderr] Checking crossbeam v0.8.3 [INFO] [stderr] Checking getrandom v0.2.11 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termios v0.3.3 [INFO] [stderr] Checking nix v0.27.1 [INFO] [stderr] Checking dirs-sys v0.4.1 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking filetime v0.2.23 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking getch v0.3.1 [INFO] [stderr] Checking directories v5.0.1 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking term v0.7.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling serde_derive v1.0.193 [INFO] [stderr] Checking ctrlc v3.4.2 [INFO] [stderr] Checking tempfile v3.8.1 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Checking serde_spanned v0.6.4 [INFO] [stderr] Checking toml_datetime v0.6.5 [INFO] [stderr] Checking toml_edit v0.21.0 [INFO] [stderr] Checking toml v0.8.8 [INFO] [stderr] Checking amber v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::path::PathBuf` [INFO] [stdout] --> benches/path_finder.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::path::PathBuf; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `test::Bencher` [INFO] [stdout] --> benches/path_finder.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use test::Bencher; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved import `rand::StdRng` [INFO] [stdout] --> benches/matcher.rs:8:30 [INFO] [stdout] | [INFO] [stdout] 8 | use rand::{Rng, SeedableRng, StdRng}; [INFO] [stdout] | ^^^^^^ no `StdRng` in the root [INFO] [stdout] | [INFO] [stdout] = help: consider importing this struct instead: [INFO] [stdout] rand::rngs::StdRng [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0782]: expected a type, found a trait [INFO] [stdout] --> benches/matcher.rs:41:31 [INFO] [stdout] | [INFO] [stdout] 41 | fn bench(b: &mut Bencher, m: &Matcher) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use a new generic type parameter, constrained by `Matcher` [INFO] [stdout] | [INFO] [stdout] 41 - fn bench(b: &mut Bencher, m: &Matcher) { [INFO] [stdout] 41 + fn bench(b: &mut Bencher, m: &T) { [INFO] [stdout] | [INFO] [stdout] help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference [INFO] [stdout] | [INFO] [stdout] 41 | fn bench(b: &mut Bencher, m: &impl Matcher) { [INFO] [stdout] | ++++ [INFO] [stdout] help: alternatively, use a trait object to accept any type that implements `Matcher`, accessing its methods at runtime using dynamic dispatch [INFO] [stdout] | [INFO] [stdout] 41 | fn bench(b: &mut Bencher, m: &dyn Matcher) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `amber` (bench "matcher") due to 2 previous errors [INFO] [stdout] Some errors have detailed explanations: E0432, E0782. [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] For more information about an error, try `rustc --explain E0432`. [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8c26b92e10a61676872660641b948095f87c76e975817ad785caba7396b44ce2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c26b92e10a61676872660641b948095f87c76e975817ad785caba7396b44ce2", kill_on_drop: false }` [INFO] [stdout] 8c26b92e10a61676872660641b948095f87c76e975817ad785caba7396b44ce2