[INFO] fetching crate multitooth 0.0.1... [INFO] checking multitooth-0.0.1 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846 [INFO] extracting crate multitooth 0.0.1 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate multitooth 0.0.1 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate multitooth 0.0.1 [INFO] finished tweaking crates.io crate multitooth 0.0.1 [INFO] tweaked toml for crates.io crate multitooth 0.0.1 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", 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] 2f763189224c53501dda8e3e14e90208ae54aacfa096ce8a96c5c3b2c87f82c2 [INFO] running `Command { std: "docker" "start" "-a" "2f763189224c53501dda8e3e14e90208ae54aacfa096ce8a96c5c3b2c87f82c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2f763189224c53501dda8e3e14e90208ae54aacfa096ce8a96c5c3b2c87f82c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f763189224c53501dda8e3e14e90208ae54aacfa096ce8a96c5c3b2c87f82c2", kill_on_drop: false }` [INFO] [stdout] 2f763189224c53501dda8e3e14e90208ae54aacfa096ce8a96c5c3b2c87f82c2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 766f058b9ff829bfbbd8e0745966b9d484b1e99d14a766f00f12ab6ec133d501 [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" "766f058b9ff829bfbbd8e0745966b9d484b1e99d14a766f00f12ab6ec133d501", kill_on_drop: false }` [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking multitooth v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::os` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::os; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ErrorKind`, `Error` [INFO] [stdout] --> src/main.rs:11:15 [INFO] [stdout] | [INFO] [stdout] 11 | use std::io::{Error,ErrorKind}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::os` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::os; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ErrorKind`, `Error` [INFO] [stdout] --> src/main.rs:11:15 [INFO] [stdout] | [INFO] [stdout] 11 | use std::io::{Error,ErrorKind}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:48:25 [INFO] [stdout] | [INFO] [stdout] 45 | panic!(e); [INFO] [stdout] | ---------- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 48 | unsafe { ::std::mem::forget(stdout) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:48:25 [INFO] [stdout] | [INFO] [stdout] 45 | panic!(e); [INFO] [stdout] | ---------- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 48 | unsafe { ::std::mem::forget(stdout) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `tail` found for struct `std::vec::Vec` in the current scope [INFO] [stdout] --> src/main.rs:99:41 [INFO] [stdout] | [INFO] [stdout] 99 | let matches = match opts.parse(args.tail()) { [INFO] [stdout] | ^^^^ method not found in `std::vec::Vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `tail` found for struct `std::vec::Vec` in the current scope [INFO] [stdout] --> src/main.rs:99:41 [INFO] [stdout] | [INFO] [stdout] 99 | let matches = match opts.parse(args.tail()) { [INFO] [stdout] | ^^^^ method not found in `std::vec::Vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: could not compile `multitooth`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "766f058b9ff829bfbbd8e0745966b9d484b1e99d14a766f00f12ab6ec133d501", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "766f058b9ff829bfbbd8e0745966b9d484b1e99d14a766f00f12ab6ec133d501", kill_on_drop: false }` [INFO] [stdout] 766f058b9ff829bfbbd8e0745966b9d484b1e99d14a766f00f12ab6ec133d501