[INFO] fetching crate no-error-type 0.1.2...
[INFO] building no-error-type-0.1.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate no-error-type 0.1.2 into /workspace/builds/worker-4-tc2/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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate no-error-type 0.1.2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0542341b5af43882af6b6873ef574f9101234c22e15e5a82b45e5295e4fc2f45
[INFO] running `Command { std: "docker" "start" "-a" "0542341b5af43882af6b6873ef574f9101234c22e15e5a82b45e5295e4fc2f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0542341b5af43882af6b6873ef574f9101234c22e15e5a82b45e5295e4fc2f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0542341b5af43882af6b6873ef574f9101234c22e15e5a82b45e5295e4fc2f45", kill_on_drop: false }`
[INFO] [stdout] 0542341b5af43882af6b6873ef574f9101234c22e15e5a82b45e5295e4fc2f45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35c45d5d07e6e4217591fa196bb1c662b808432f4582f70dae30a0d22dca4cbb
[INFO] running `Command { std: "docker" "start" "-a" "35c45d5d07e6e4217591fa196bb1c662b808432f4582f70dae30a0d22dca4cbb", 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "35c45d5d07e6e4217591fa196bb1c662b808432f4582f70dae30a0d22dca4cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35c45d5d07e6e4217591fa196bb1c662b808432f4582f70dae30a0d22dca4cbb", kill_on_drop: false }`
[INFO] [stdout] 35c45d5d07e6e4217591fa196bb1c662b808432f4582f70dae30a0d22dca4cbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4076c18074a9918a72f61e14a558c0e6f55c48714bb72d29638ec16144df5ae5
[INFO] running `Command { std: "docker" "start" "-a" "4076c18074a9918a72f61e14a558c0e6f55c48714bb72d29638ec16144df5ae5", 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "4076c18074a9918a72f61e14a558c0e6f55c48714bb72d29638ec16144df5ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4076c18074a9918a72f61e14a558c0e6f55c48714bb72d29638ec16144df5ae5", kill_on_drop: false }`
[INFO] [stdout] 4076c18074a9918a72f61e14a558c0e6f55c48714bb72d29638ec16144df5ae5