[INFO] cloning repository https://github.com/3mber666/Rust-Error-Verbose
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/3mber666/Rust-Error-Verbose" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3mber666%2FRust-Error-Verbose", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3mber666%2FRust-Error-Verbose'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 960e6821056fbe650e3c397fb00989d28c8584cb
[INFO] testing 3mber666/Rust-Error-Verbose against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3mber666%2FRust-Error-Verbose" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/3mber666/Rust-Error-Verbose
[INFO] finished tweaking git repo https://github.com/3mber666/Rust-Error-Verbose
[INFO] tweaked toml for git repo https://github.com/3mber666/Rust-Error-Verbose written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/3mber666/Rust-Error-Verbose on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/3mber666/Rust-Error-Verbose 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5710e29bb74c64154fb5f0e0b2c0fe2ca127431f11337c130fc29a2e6fc304a
[INFO] running `Command { std: "docker" "start" "-a" "d5710e29bb74c64154fb5f0e0b2c0fe2ca127431f11337c130fc29a2e6fc304a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5710e29bb74c64154fb5f0e0b2c0fe2ca127431f11337c130fc29a2e6fc304a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5710e29bb74c64154fb5f0e0b2c0fe2ca127431f11337c130fc29a2e6fc304a", kill_on_drop: false }`
[INFO] [stdout] d5710e29bb74c64154fb5f0e0b2c0fe2ca127431f11337c130fc29a2e6fc304a
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 841a072b73f34e4bd75f84054e3e359292d5c1df2a502a19472e17564275998f
[INFO] running `Command { std: "docker" "start" "-a" "841a072b73f34e4bd75f84054e3e359292d5c1df2a502a19472e17564275998f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling openssl v0.10.59
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling futures-io v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling futures-sink v0.3.29
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling http v0.2.10
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling encoding_rs v0.8.33
[INFO] [stderr]    Compiling base64 v0.21.5
[INFO] [stderr]    Compiling ipnet v2.9.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling mio v0.8.9
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling tokio v1.34.0
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling openssl-sys v0.9.95
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling h2 v0.3.21
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling hyper v0.14.27
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.22
[INFO] [stderr]    Compiling rust-error-verbose v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let key = std::fs::read_to_string("sample-key").map_err(FileReadError)?;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 39s
[INFO] running `Command { std: "docker" "inspect" "841a072b73f34e4bd75f84054e3e359292d5c1df2a502a19472e17564275998f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "841a072b73f34e4bd75f84054e3e359292d5c1df2a502a19472e17564275998f", kill_on_drop: false }`
[INFO] [stdout] 841a072b73f34e4bd75f84054e3e359292d5c1df2a502a19472e17564275998f
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6292b11fc3e9a65c47c946e52c035bba64c0711651fe81cd8da3debe7f2eb61f
[INFO] running `Command { std: "docker" "start" "-a" "6292b11fc3e9a65c47c946e52c035bba64c0711651fe81cd8da3debe7f2eb61f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-error-verbose v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let key = std::fs::read_to_string("sample-key").map_err(FileReadError)?;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "6292b11fc3e9a65c47c946e52c035bba64c0711651fe81cd8da3debe7f2eb61f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6292b11fc3e9a65c47c946e52c035bba64c0711651fe81cd8da3debe7f2eb61f", kill_on_drop: false }`
[INFO] [stdout] 6292b11fc3e9a65c47c946e52c035bba64c0711651fe81cd8da3debe7f2eb61f
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 179a01b382248242d714a8df8f9c0479bc2234c4e210ec42617a7c278e1b4c87
[INFO] running `Command { std: "docker" "start" "-a" "179a01b382248242d714a8df8f9c0479bc2234c4e210ec42617a7c278e1b4c87", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/main.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let key = std::fs::read_to_string("sample-key").map_err(FileReadError)?;
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-error-verbose` (bin "rust-error-verbose" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_error_verbose-fcd4c1824cb14fcb)
[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" "179a01b382248242d714a8df8f9c0479bc2234c4e210ec42617a7c278e1b4c87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179a01b382248242d714a8df8f9c0479bc2234c4e210ec42617a7c278e1b4c87", kill_on_drop: false }`
[INFO] [stdout] 179a01b382248242d714a8df8f9c0479bc2234c4e210ec42617a7c278e1b4c87
