[INFO] fetching crate no-error-type 0.1.2...
[INFO] testing no-error-type-0.1.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate no-error-type 0.1.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate no-error-type 0.1.2
[INFO] finished tweaking crates.io crate no-error-type 0.1.2
[INFO] tweaked toml for crates.io crate no-error-type 0.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate no-error-type 0.1.2 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 no-error-type 0.1.2 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 embedded-io v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebaa8ca4c8eca9266c66265c1fa58df459cad5f1107811604bfd6c24cb2f95ea
[INFO] running `Command { std: "docker" "start" "-a" "ebaa8ca4c8eca9266c66265c1fa58df459cad5f1107811604bfd6c24cb2f95ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebaa8ca4c8eca9266c66265c1fa58df459cad5f1107811604bfd6c24cb2f95ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebaa8ca4c8eca9266c66265c1fa58df459cad5f1107811604bfd6c24cb2f95ea", kill_on_drop: false }`
[INFO] [stdout] ebaa8ca4c8eca9266c66265c1fa58df459cad5f1107811604bfd6c24cb2f95ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b5931ddb8a56d8744cb0e0a496ecee3cba0082187f164426691289cd761d679
[INFO] running `Command { std: "docker" "start" "-a" "8b5931ddb8a56d8744cb0e0a496ecee3cba0082187f164426691289cd761d679", kill_on_drop: false }`
[INFO] [stderr]    Compiling no-error-type v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> src/lib.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
[INFO] [stdout]   |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[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 0.13s
[INFO] running `Command { std: "docker" "inspect" "8b5931ddb8a56d8744cb0e0a496ecee3cba0082187f164426691289cd761d679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5931ddb8a56d8744cb0e0a496ecee3cba0082187f164426691289cd761d679", kill_on_drop: false }`
[INFO] [stdout] 8b5931ddb8a56d8744cb0e0a496ecee3cba0082187f164426691289cd761d679
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83adf05031b54beccc820b37babb0a2a8989193213e18c845ac484ddc26bc8bf
[INFO] running `Command { std: "docker" "start" "-a" "83adf05031b54beccc820b37babb0a2a8989193213e18c845ac484ddc26bc8bf", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> src/lib.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
[INFO] [stdout]   |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling no-error-type v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> src/lib.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
[INFO] [stdout]   |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[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 0.33s
[INFO] running `Command { std: "docker" "inspect" "83adf05031b54beccc820b37babb0a2a8989193213e18c845ac484ddc26bc8bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83adf05031b54beccc820b37babb0a2a8989193213e18c845ac484ddc26bc8bf", kill_on_drop: false }`
[INFO] [stdout] 83adf05031b54beccc820b37babb0a2a8989193213e18c845ac484ddc26bc8bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] edf4bb444f30faba850a8caa7240d6989dd71eae662ddc6402360dce1eb2d96c
[INFO] running `Command { std: "docker" "start" "-a" "edf4bb444f30faba850a8caa7240d6989dd71eae662ddc6402360dce1eb2d96c", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stdout] 
[INFO] [stderr]  --> src/lib.rs:7:19
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 7 |     fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `no-error-type` (lib) generated 1 warning
[INFO] [stderr] warning: `no-error-type` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/no_error_type-2a4f2cc4095ba851)
[INFO] [stderr]    Doc-tests no_error_type
[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" "edf4bb444f30faba850a8caa7240d6989dd71eae662ddc6402360dce1eb2d96c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edf4bb444f30faba850a8caa7240d6989dd71eae662ddc6402360dce1eb2d96c", kill_on_drop: false }`
[INFO] [stdout] edf4bb444f30faba850a8caa7240d6989dd71eae662ddc6402360dce1eb2d96c