[INFO] fetching crate cargo-mutagen 0.1.2... [INFO] testing cargo-mutagen-0.1.2 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7 [INFO] extracting crate cargo-mutagen 0.1.2 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate cargo-mutagen 0.1.2 [INFO] finished tweaking crates.io crate cargo-mutagen 0.1.2 [INFO] tweaked toml for crates.io crate cargo-mutagen 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate cargo-mutagen 0.1.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 21 packages to latest compatible versions [INFO] [stderr] Adding json v0.11.15 (available: v0.12.4) [INFO] [stderr] Adding wait-timeout v0.1.5 (available: v0.2.1) [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] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3b48689b80abbe7f3c7344e162e50256d498fe0be183c6e6fb27986ac8498b65 [INFO] running `Command { std: "docker" "start" "-a" "3b48689b80abbe7f3c7344e162e50256d498fe0be183c6e6fb27986ac8498b65", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3b48689b80abbe7f3c7344e162e50256d498fe0be183c6e6fb27986ac8498b65", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b48689b80abbe7f3c7344e162e50256d498fe0be183c6e6fb27986ac8498b65", kill_on_drop: false }` [INFO] [stdout] 3b48689b80abbe7f3c7344e162e50256d498fe0be183c6e6fb27986ac8498b65 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] eeb86f45686e9935d0588ca84f27162b0cb4c4752a2f94531a877a884a34a05e [INFO] running `Command { std: "docker" "start" "-a" "eeb86f45686e9935d0588ca84f27162b0cb4c4752a2f94531a877a884a34a05e", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling object v0.37.3 [INFO] [stderr] Compiling gimli v0.32.3 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling rustc-demangle v0.1.26 [INFO] [stderr] Compiling json v0.11.15 [INFO] [stderr] Compiling miniz_oxide v0.8.9 [INFO] [stderr] Compiling wait-timeout v0.1.5 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling addr2line v0.25.1 [INFO] [stderr] Compiling backtrace v0.3.76 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling cargo-mutagen v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:48:31 [INFO] [stdout] | [INFO] [stdout] 48 | fn run_mutations(runner: &mut Runner, list: &[String]) -> Result<()> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 48 | fn run_mutations(runner: &mut dyn Runner, list: &[String]) -> Result<()> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:161:26 [INFO] [stdout] | [INFO] [stdout] 161 | let runner: &mut Runner = if with_coverage { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 161 | let runner: &mut dyn Runner = if with_coverage { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/runner.rs:15:11 [INFO] [stdout] | [INFO] [stdout] 15 | Error(Option), [INFO] [stdout] | ----- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 15 - Error(Option), [INFO] [stdout] 15 + Error(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/main.rs:31:46 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn from(mutation: &'a str) -> Result { [INFO] [stdout] | -- ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 31 | pub fn from(mutation: &'a str) -> Result> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.31s [INFO] running `Command { std: "docker" "inspect" "eeb86f45686e9935d0588ca84f27162b0cb4c4752a2f94531a877a884a34a05e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eeb86f45686e9935d0588ca84f27162b0cb4c4752a2f94531a877a884a34a05e", kill_on_drop: false }` [INFO] [stdout] eeb86f45686e9935d0588ca84f27162b0cb4c4752a2f94531a877a884a34a05e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bae3eeed01c41f04856def876195219330d8ec6a413adba94c7fae87f3e56045 [INFO] running `Command { std: "docker" "start" "-a" "bae3eeed01c41f04856def876195219330d8ec6a413adba94c7fae87f3e56045", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling cargo-mutagen v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:48:31 [INFO] [stdout] | [INFO] [stdout] 48 | fn run_mutations(runner: &mut Runner, list: &[String]) -> Result<()> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 48 | fn run_mutations(runner: &mut dyn Runner, list: &[String]) -> Result<()> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:161:26 [INFO] [stdout] | [INFO] [stdout] 161 | let runner: &mut Runner = if with_coverage { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 161 | let runner: &mut dyn Runner = if with_coverage { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/runner.rs:15:11 [INFO] [stdout] | [INFO] [stdout] 15 | Error(Option), [INFO] [stdout] | ----- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 15 - Error(Option), [INFO] [stdout] 15 + Error(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/main.rs:31:46 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn from(mutation: &'a str) -> Result { [INFO] [stdout] | -- ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 31 | pub fn from(mutation: &'a str) -> Result> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s [INFO] running `Command { std: "docker" "inspect" "bae3eeed01c41f04856def876195219330d8ec6a413adba94c7fae87f3e56045", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bae3eeed01c41f04856def876195219330d8ec6a413adba94c7fae87f3e56045", kill_on_drop: false }` [INFO] [stdout] bae3eeed01c41f04856def876195219330d8ec6a413adba94c7fae87f3e56045 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 00f4b4eb09409aefc811fb0693c388dd5dcfce9c7e8450fce16a6388a577d83e [INFO] running `Command { std: "docker" "start" "-a" "00f4b4eb09409aefc811fb0693c388dd5dcfce9c7e8450fce16a6388a577d83e", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:48:31 [INFO] [stderr] | [INFO] [stderr] 48 | fn run_mutations(runner: &mut Runner, list: &[String]) -> Result<()> { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 48 | fn run_mutations(runner: &mut dyn Runner, list: &[String]) -> Result<()> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:161:26 [INFO] [stderr] | [INFO] [stderr] 161 | let runner: &mut Runner = if with_coverage { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 161 | let runner: &mut dyn Runner = if with_coverage { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/runner.rs:15:11 [INFO] [stderr] | [INFO] [stderr] 15 | Error(Option), [INFO] [stderr] | ----- ^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 15 - Error(Option), [INFO] [stderr] 15 + Error(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stderr] --> src/main.rs:31:46 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn from(mutation: &'a str) -> Result { [INFO] [stdout] [INFO] [stderr] | -- ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] running 4 tests [INFO] [stderr] | | [INFO] [stderr] | the lifetime is named here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: consistently use `'a` [INFO] [stderr] | [INFO] [stderr] 31 | pub fn from(mutation: &'a str) -> Result> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `cargo-mutagen` (bin "cargo-mutagen" test) generated 4 warnings (run `cargo fix --bin "cargo-mutagen" -p cargo-mutagen --tests` to apply 3 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cargo_mutagen-5526eca4ae412b8f) [INFO] [stdout] test runner::tests::it_returns_no_tests_on_empty ... ok [INFO] [stdout] test tests::it_decodes_well_formed_mutations ... ok [INFO] [stdout] test runner::tests::it_returns_test_if_they_were_added ... ok [INFO] [stdout] test tests::it_fails_to_decode_malformed_mutations ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "00f4b4eb09409aefc811fb0693c388dd5dcfce9c7e8450fce16a6388a577d83e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00f4b4eb09409aefc811fb0693c388dd5dcfce9c7e8450fce16a6388a577d83e", kill_on_drop: false }` [INFO] [stdout] 00f4b4eb09409aefc811fb0693c388dd5dcfce9c7e8450fce16a6388a577d83e