[INFO] fetching crate trigout 0.1.0...
[INFO] checking trigout-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate trigout 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate trigout 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trigout 0.1.0
[INFO] finished tweaking crates.io crate trigout 0.1.0
[INFO] tweaked toml for crates.io crate trigout 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate trigout 0.1.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.125
[INFO] [stderr]   Downloaded serde v1.0.125
[INFO] [stderr]   Downloaded substring v1.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6c9e64c309b8735364d96ac9c049045725d17e1fb06d94d84deec9001aca97f
[INFO] running `Command { std: "docker" "start" "-a" "f6c9e64c309b8735364d96ac9c049045725d17e1fb06d94d84deec9001aca97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6c9e64c309b8735364d96ac9c049045725d17e1fb06d94d84deec9001aca97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6c9e64c309b8735364d96ac9c049045725d17e1fb06d94d84deec9001aca97f", kill_on_drop: false }`
[INFO] [stdout] f6c9e64c309b8735364d96ac9c049045725d17e1fb06d94d84deec9001aca97f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6b04432998462215e7fbf6823e49e309236d0bc3bc0f5eb9397a5a7200dca00
[INFO] running `Command { std: "docker" "start" "-a" "f6b04432998462215e7fbf6823e49e309236d0bc3bc0f5eb9397a5a7200dca00", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling substring v1.4.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking trigout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `form`
[INFO] [stdout]  --> tests/test_format.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let form = FormatType::new();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_form`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.83s
[INFO] running `Command { std: "docker" "inspect" "f6b04432998462215e7fbf6823e49e309236d0bc3bc0f5eb9397a5a7200dca00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6b04432998462215e7fbf6823e49e309236d0bc3bc0f5eb9397a5a7200dca00", kill_on_drop: false }`
[INFO] [stdout] f6b04432998462215e7fbf6823e49e309236d0bc3bc0f5eb9397a5a7200dca00
[INFO] checking trigout-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate trigout 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate trigout 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trigout 0.1.0
[INFO] finished tweaking crates.io crate trigout 0.1.0
[INFO] tweaked toml for crates.io crate trigout 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate trigout 0.1.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb75c6d9709a8f9bba62a1c5b52552df5b2ac3cc3d79c18bd37a796c32ebd2cd
[INFO] running `Command { std: "docker" "start" "-a" "cb75c6d9709a8f9bba62a1c5b52552df5b2ac3cc3d79c18bd37a796c32ebd2cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb75c6d9709a8f9bba62a1c5b52552df5b2ac3cc3d79c18bd37a796c32ebd2cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb75c6d9709a8f9bba62a1c5b52552df5b2ac3cc3d79c18bd37a796c32ebd2cd", kill_on_drop: false }`
[INFO] [stdout] cb75c6d9709a8f9bba62a1c5b52552df5b2ac3cc3d79c18bd37a796c32ebd2cd
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c81b0ce33b61b6f570db41ba10ffceefdabc36039046c04864b9625656a4eb58
[INFO] running `Command { std: "docker" "start" "-a" "c81b0ce33b61b6f570db41ba10ffceefdabc36039046c04864b9625656a4eb58", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling substring v1.4.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking trigout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `form`
[INFO] [stdout]  --> tests/test_format.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let form = FormatType::new();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_form`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.06s
[INFO] running `Command { std: "docker" "inspect" "c81b0ce33b61b6f570db41ba10ffceefdabc36039046c04864b9625656a4eb58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c81b0ce33b61b6f570db41ba10ffceefdabc36039046c04864b9625656a4eb58", kill_on_drop: false }`
[INFO] [stdout] c81b0ce33b61b6f570db41ba10ffceefdabc36039046c04864b9625656a4eb58