[INFO] fetching crate op-config 0.1.0...
[INFO] checking op-config-0.1.0 against master#826b673412d2f579e7865b6f26bc9771c6d3b097 for pr-133397
[INFO] extracting crate op-config 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate op-config 0.1.0 on toolchain 826b673412d2f579e7865b6f26bc9771c6d3b097
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate op-config 0.1.0
[INFO] finished tweaking crates.io crate op-config 0.1.0
[INFO] tweaked toml for crates.io crate op-config 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 206 packages to latest compatible versions
[INFO] [stderr]       Adding enum-variants-strings v0.2.3 (available: v0.3.0)
[INFO] [stderr]       Adding inquire v0.6.2 (available: v0.7.5)
[INFO] [stderr]       Adding strum v0.25.0 (available: v0.26.3)
[INFO] [stderr]       Adding toml_edit v0.20.7 (available: v0.22.22)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded op-primitives v0.1.0
[INFO] [stderr]   Downloaded temp_testdir v0.2.3
[INFO] [stderr]   Downloaded string-cases v0.2.0
[INFO] [stderr]   Downloaded enum-variants-strings v0.2.3
[INFO] [stderr]   Downloaded either_n v0.2.0
[INFO] [stderr]   Downloaded enum-variants-strings-derive v0.2.4
[INFO] [stderr]   Downloaded project-root v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cecde144196f173c2ba0366abe314e2e11c3c3635b554b2a19d77d6ccaa8d8c
[INFO] running `Command { std: "docker" "start" "-a" "0cecde144196f173c2ba0366abe314e2e11c3c3635b554b2a19d77d6ccaa8d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cecde144196f173c2ba0366abe314e2e11c3c3635b554b2a19d77d6ccaa8d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cecde144196f173c2ba0366abe314e2e11c3c3635b554b2a19d77d6ccaa8d8c", kill_on_drop: false }`
[INFO] [stdout] 0cecde144196f173c2ba0366abe314e2e11c3c3635b554b2a19d77d6ccaa8d8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 086afc3e91280126e5a5a347b968a72794dfe8c212ffc9a3d532af0b38df6f6a
[INFO] running `Command { std: "docker" "start" "-a" "086afc3e91280126e5a5a347b968a72794dfe8c212ffc9a3d532af0b38df6f6a", kill_on_drop: false }`
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[INFO] [stderr]     Checking op-primitives v0.1.0
[INFO] [stderr]     Checking op-config v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `wrap` and `strict_select` are never used
[INFO] [stdout]    --> src/stack.rs:529:8
[INFO] [stdout]     |
[INFO] [stdout] 520 | trait ProviderExt: Provider {
[INFO] [stdout]     |       ----------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 529 |     fn wrap(
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 537 |     fn strict_select(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `wrap` and `strict_select` are never used
[INFO] [stdout]    --> src/stack.rs:529:8
[INFO] [stdout]     |
[INFO] [stdout] 520 | trait ProviderExt: Provider {
[INFO] [stdout]     |       ----------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 529 |     fn wrap(
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 537 |     fn strict_select(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.90s
[INFO] running `Command { std: "docker" "inspect" "086afc3e91280126e5a5a347b968a72794dfe8c212ffc9a3d532af0b38df6f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086afc3e91280126e5a5a347b968a72794dfe8c212ffc9a3d532af0b38df6f6a", kill_on_drop: false }`
[INFO] [stdout] 086afc3e91280126e5a5a347b968a72794dfe8c212ffc9a3d532af0b38df6f6a