[INFO] cloning repository https://github.com/mrozycki/rust-fst [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrozycki/rust-fst" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrozycki%2Frust-fst", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrozycki%2Frust-fst'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 27812d506fc0f4a45943596faebdaaccd58e372c [INFO] testing mrozycki/rust-fst against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrozycki%2Frust-fst" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mrozycki/rust-fst on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mrozycki/rust-fst [INFO] finished tweaking git repo https://github.com/mrozycki/rust-fst [INFO] tweaked toml for git repo https://github.com/mrozycki/rust-fst written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/mrozycki/rust-fst already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b31047058e73fab256bc652a0e92df8b0e2acd733edc0fd3ffe85975a363f7b1 [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" "b31047058e73fab256bc652a0e92df8b0e2acd733edc0fd3ffe85975a363f7b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b31047058e73fab256bc652a0e92df8b0e2acd733edc0fd3ffe85975a363f7b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b31047058e73fab256bc652a0e92df8b0e2acd733edc0fd3ffe85975a363f7b1", kill_on_drop: false }` [INFO] [stdout] b31047058e73fab256bc652a0e92df8b0e2acd733edc0fd3ffe85975a363f7b1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1725d735fc725d0e16c18807ea84f0f999dbcd78783ad1310293c382e4ec1f0f [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" "1725d735fc725d0e16c18807ea84f0f999dbcd78783ad1310293c382e4ec1f0f", kill_on_drop: false }` [INFO] [stderr] Compiling rust-fst v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `empty` [INFO] [stdout] --> src/fst.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn empty() -> Self { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `string` [INFO] [stdout] --> src/fst.rs:60:12 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn string(s: &str) -> Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `and` [INFO] [stdout] --> src/fst.rs:83:12 [INFO] [stdout] | [INFO] [stdout] 83 | pub fn and(m1: Self, m2: Self) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `and_optionally` [INFO] [stdout] --> src/fst.rs:97:12 [INFO] [stdout] | [INFO] [stdout] 97 | pub fn and_optionally(m1: Self, m2: Self) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `repeated` [INFO] [stdout] --> src/fst.rs:159:12 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn repeated(mut m: Self) -> Self { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/fst.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 217 | writeln!(f, "{} {}", self.state_count, self.transitions.len()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/fst.rs:219:13 [INFO] [stdout] | [INFO] [stdout] 219 | writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/fst.rs:223:13 [INFO] [stdout] | [INFO] [stdout] 223 | write!(f, "{} ", state); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.50s [INFO] running `Command { std: "docker" "inspect" "1725d735fc725d0e16c18807ea84f0f999dbcd78783ad1310293c382e4ec1f0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1725d735fc725d0e16c18807ea84f0f999dbcd78783ad1310293c382e4ec1f0f", kill_on_drop: false }` [INFO] [stdout] 1725d735fc725d0e16c18807ea84f0f999dbcd78783ad1310293c382e4ec1f0f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 483ea6d271d6e6065d080b639156b9ee67fba7902e8ce3b51afa1887947a8e83 [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" "483ea6d271d6e6065d080b639156b9ee67fba7902e8ce3b51afa1887947a8e83", kill_on_drop: false }` [INFO] [stderr] Compiling rust-fst v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `empty` [INFO] [stdout] --> src/fst.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn empty() -> Self { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `string` [INFO] [stdout] --> src/fst.rs:60:12 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn string(s: &str) -> Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `and` [INFO] [stdout] --> src/fst.rs:83:12 [INFO] [stdout] | [INFO] [stdout] 83 | pub fn and(m1: Self, m2: Self) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `and_optionally` [INFO] [stdout] --> src/fst.rs:97:12 [INFO] [stdout] | [INFO] [stdout] 97 | pub fn and_optionally(m1: Self, m2: Self) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `repeated` [INFO] [stdout] --> src/fst.rs:159:12 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn repeated(mut m: Self) -> Self { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/fst.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 217 | writeln!(f, "{} {}", self.state_count, self.transitions.len()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/fst.rs:219:13 [INFO] [stdout] | [INFO] [stdout] 219 | writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/fst.rs:223:13 [INFO] [stdout] | [INFO] [stdout] 223 | write!(f, "{} ", state); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `Command { std: "docker" "inspect" "483ea6d271d6e6065d080b639156b9ee67fba7902e8ce3b51afa1887947a8e83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "483ea6d271d6e6065d080b639156b9ee67fba7902e8ce3b51afa1887947a8e83", kill_on_drop: false }` [INFO] [stdout] 483ea6d271d6e6065d080b639156b9ee67fba7902e8ce3b51afa1887947a8e83 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 29a3ec8ccf336d9c11d6d4770d06dc4e0ffc1ae75b09ca346c545b1ca1f3961e [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" "29a3ec8ccf336d9c11d6d4770d06dc4e0ffc1ae75b09ca346c545b1ca1f3961e", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: associated function is never used: `empty` [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/fst.rs:36:12 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 36 | pub fn empty() -> Self { [INFO] [stdout] [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `string` [INFO] [stderr] --> src/fst.rs:60:12 [INFO] [stderr] | [INFO] [stderr] 60 | pub fn string(s: &str) -> Self { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `and` [INFO] [stderr] --> src/fst.rs:83:12 [INFO] [stderr] | [INFO] [stderr] 83 | pub fn and(m1: Self, m2: Self) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `and_optionally` [INFO] [stderr] --> src/fst.rs:97:12 [INFO] [stderr] | [INFO] [stderr] 97 | pub fn and_optionally(m1: Self, m2: Self) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `repeated` [INFO] [stderr] --> src/fst.rs:159:12 [INFO] [stderr] | [INFO] [stderr] 159 | pub fn repeated(mut m: Self) -> Self { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/fst.rs:217:9 [INFO] [stderr] | [INFO] [stderr] 217 | writeln!(f, "{} {}", self.state_count, self.transitions.len()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/fst.rs:219:13 [INFO] [stderr] | [INFO] [stderr] 219 | writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/fst.rs:223:13 [INFO] [stderr] | [INFO] [stderr] 223 | write!(f, "{} ", state); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `rust-fst` (bin "rust-fst" test) generated 8 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_fst-760062ee9d73b0c8) [INFO] running `Command { std: "docker" "inspect" "29a3ec8ccf336d9c11d6d4770d06dc4e0ffc1ae75b09ca346c545b1ca1f3961e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "29a3ec8ccf336d9c11d6d4770d06dc4e0ffc1ae75b09ca346c545b1ca1f3961e", kill_on_drop: false }` [INFO] [stdout] 29a3ec8ccf336d9c11d6d4770d06dc4e0ffc1ae75b09ca346c545b1ca1f3961e