[INFO] fetching crate creak 0.3.0...
[INFO] checking creak-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate creak 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate creak 0.3.0 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 creak 0.3.0
[INFO] finished tweaking crates.io crate creak 0.3.0
[INFO] tweaked toml for crates.io crate creak 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate creak 0.3.0 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 minimp3 v0.5.0
[INFO] [stderr]   Downloaded cc v1.0.66
[INFO] [stderr]   Downloaded byteorder v1.3.4
[INFO] [stderr]   Downloaded tinyvec v0.3.4
[INFO] [stderr]   Downloaded hound v3.4.0
[INFO] [stderr]   Downloaded ogg v0.7.1
[INFO] [stderr]   Downloaded claxon v0.4.3
[INFO] [stderr]   Downloaded libc v0.2.80
[INFO] [stderr]   Downloaded lewton v0.10.1
[INFO] [stderr]   Downloaded minimp3-sys v0.3.2
[INFO] [stderr]   Downloaded slice-deque v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ec26b97e9e15b221ce379e47e3dab2b86cfb3748c438251218d505c55b321148
[INFO] running `Command { std: "docker" "start" "-a" "ec26b97e9e15b221ce379e47e3dab2b86cfb3748c438251218d505c55b321148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec26b97e9e15b221ce379e47e3dab2b86cfb3748c438251218d505c55b321148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec26b97e9e15b221ce379e47e3dab2b86cfb3748c438251218d505c55b321148", kill_on_drop: false }`
[INFO] [stdout] ec26b97e9e15b221ce379e47e3dab2b86cfb3748c438251218d505c55b321148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e76be76dc69179032319d8a6e4e0d79af06950123bc7d27ab6dbb42732eb990e
[INFO] running `Command { std: "docker" "start" "-a" "e76be76dc69179032319d8a6e4e0d79af06950123bc7d27ab6dbb42732eb990e", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking ogg v0.7.1
[INFO] [stderr]     Checking lewton v0.10.1
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking minimp3 v0.5.0
[INFO] [stderr]     Checking creak v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `creak` is imported redundantly
[INFO] [stdout]  --> src/tools/creak-raw.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use creak;
[INFO] [stdout]   |     ^^^^^ the item `creak` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `creak` is imported redundantly
[INFO] [stdout]  --> src/tools/creak-raw.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use creak;
[INFO] [stdout]   |     ^^^^^ the item `creak` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "e76be76dc69179032319d8a6e4e0d79af06950123bc7d27ab6dbb42732eb990e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e76be76dc69179032319d8a6e4e0d79af06950123bc7d27ab6dbb42732eb990e", kill_on_drop: false }`
[INFO] [stdout] e76be76dc69179032319d8a6e4e0d79af06950123bc7d27ab6dbb42732eb990e
[INFO] checking creak-0.3.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate creak 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate creak 0.3.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate creak 0.3.0
[INFO] finished tweaking crates.io crate creak 0.3.0
[INFO] tweaked toml for crates.io crate creak 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate creak 0.3.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 756b8d317d6b4cbc57091bbb6b6cba63aa9792656e33198b87e37b3fc4f455c2
[INFO] running `Command { std: "docker" "start" "-a" "756b8d317d6b4cbc57091bbb6b6cba63aa9792656e33198b87e37b3fc4f455c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "756b8d317d6b4cbc57091bbb6b6cba63aa9792656e33198b87e37b3fc4f455c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "756b8d317d6b4cbc57091bbb6b6cba63aa9792656e33198b87e37b3fc4f455c2", kill_on_drop: false }`
[INFO] [stdout] 756b8d317d6b4cbc57091bbb6b6cba63aa9792656e33198b87e37b3fc4f455c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abee78d05c822d4755fe3d6a6cb70c5cd1a97bb21d185d42bb45cb7bf07eddac
[INFO] running `Command { std: "docker" "start" "-a" "abee78d05c822d4755fe3d6a6cb70c5cd1a97bb21d185d42bb45cb7bf07eddac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking ogg v0.7.1
[INFO] [stderr]     Checking lewton v0.10.1
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking minimp3 v0.5.0
[INFO] [stderr]     Checking creak v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `creak` is imported redundantly
[INFO] [stdout]  --> src/tools/creak-raw.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use creak;
[INFO] [stdout]   |     ^^^^^ the item `creak` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `creak` is imported redundantly
[INFO] [stdout]  --> src/tools/creak-raw.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use creak;
[INFO] [stdout]   |     ^^^^^ the item `creak` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "abee78d05c822d4755fe3d6a6cb70c5cd1a97bb21d185d42bb45cb7bf07eddac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abee78d05c822d4755fe3d6a6cb70c5cd1a97bb21d185d42bb45cb7bf07eddac", kill_on_drop: false }`
[INFO] [stdout] abee78d05c822d4755fe3d6a6cb70c5cd1a97bb21d185d42bb45cb7bf07eddac