[INFO] fetching crate pcb 0.2.0...
[INFO] checking pcb-0.2.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate pcb 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate pcb 0.2.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pcb 0.2.0
[INFO] finished tweaking crates.io crate pcb 0.2.0
[INFO] tweaked toml for crates.io crate pcb 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding typed-arena v1.7.0 (latest: v2.0.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typed-arena v1.7.0
[INFO] [stderr]   Downloaded pcb-core v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6fd61b6b29b6bebed3aace6693dc38a3f4b3620168283469474ba4b979ee046
[INFO] running `Command { std: "docker" "start" "-a" "e6fd61b6b29b6bebed3aace6693dc38a3f4b3620168283469474ba4b979ee046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6fd61b6b29b6bebed3aace6693dc38a3f4b3620168283469474ba4b979ee046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6fd61b6b29b6bebed3aace6693dc38a3f4b3620168283469474ba4b979ee046", kill_on_drop: false }`
[INFO] [stdout] e6fd61b6b29b6bebed3aace6693dc38a3f4b3620168283469474ba4b979ee046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0edf130aacc906fdb59e93f7eba008c0f31b6edc2c9e7089cb10a49d7525e40
[INFO] running `Command { std: "docker" "start" "-a" "a0edf130aacc906fdb59e93f7eba008c0f31b6edc2c9e7089cb10a49d7525e40", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking pcb-core v0.2.0
[INFO] [stderr]     Checking pcb v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `inner_ref` is never used
[INFO] [stdout]    --> src/lib.rs:175:6
[INFO] [stdout]     |
[INFO] [stdout] 172 | trait TyExt {
[INFO] [stdout]     |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 175 |   fn inner_ref(&self) -> &Self::Output;
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `inner_ref` is never used
[INFO] [stdout]    --> src/lib.rs:175:6
[INFO] [stdout]     |
[INFO] [stdout] 172 | trait TyExt {
[INFO] [stdout]     |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 175 |   fn inner_ref(&self) -> &Self::Output;
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 0.28s
[INFO] running `Command { std: "docker" "inspect" "a0edf130aacc906fdb59e93f7eba008c0f31b6edc2c9e7089cb10a49d7525e40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0edf130aacc906fdb59e93f7eba008c0f31b6edc2c9e7089cb10a49d7525e40", kill_on_drop: false }`
[INFO] [stdout] a0edf130aacc906fdb59e93f7eba008c0f31b6edc2c9e7089cb10a49d7525e40
[INFO] checking pcb-0.2.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate pcb 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate pcb 0.2.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pcb 0.2.0
[INFO] finished tweaking crates.io crate pcb 0.2.0
[INFO] tweaked toml for crates.io crate pcb 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding typed-arena v1.7.0 (latest: v2.0.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6b807b20291d39b22b51afc9283690a405c3baf1677b6d1edc654a9e7f832da
[INFO] running `Command { std: "docker" "start" "-a" "f6b807b20291d39b22b51afc9283690a405c3baf1677b6d1edc654a9e7f832da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6b807b20291d39b22b51afc9283690a405c3baf1677b6d1edc654a9e7f832da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6b807b20291d39b22b51afc9283690a405c3baf1677b6d1edc654a9e7f832da", kill_on_drop: false }`
[INFO] [stdout] f6b807b20291d39b22b51afc9283690a405c3baf1677b6d1edc654a9e7f832da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32a1845432f688d1b8c3ec1f05d48ac14082e933c2fd6903d0f9bfc957317d48
[INFO] running `Command { std: "docker" "start" "-a" "32a1845432f688d1b8c3ec1f05d48ac14082e933c2fd6903d0f9bfc957317d48", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking pcb-core v0.2.0
[INFO] [stderr]     Checking pcb v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `inner_ref` is never used
[INFO] [stdout]    --> src/lib.rs:175:6
[INFO] [stdout]     |
[INFO] [stdout] 172 | trait TyExt {
[INFO] [stdout]     |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 175 |   fn inner_ref(&self) -> &Self::Output;
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `inner_ref` is never used
[INFO] [stdout]    --> src/lib.rs:175:6
[INFO] [stdout]     |
[INFO] [stdout] 172 | trait TyExt {
[INFO] [stdout]     |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 175 |   fn inner_ref(&self) -> &Self::Output;
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 0.29s
[INFO] running `Command { std: "docker" "inspect" "32a1845432f688d1b8c3ec1f05d48ac14082e933c2fd6903d0f9bfc957317d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a1845432f688d1b8c3ec1f05d48ac14082e933c2fd6903d0f9bfc957317d48", kill_on_drop: false }`
[INFO] [stdout] 32a1845432f688d1b8c3ec1f05d48ac14082e933c2fd6903d0f9bfc957317d48