[INFO] fetching crate tagged-tree 0.4.0...
[INFO] checking tagged-tree-0.4.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate tagged-tree 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tagged-tree 0.4.0 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 tagged-tree 0.4.0
[INFO] finished tweaking crates.io crate tagged-tree 0.4.0
[INFO] tweaked toml for crates.io crate tagged-tree 0.4.0 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[INFO] [stderr]       Adding downcast v0.10.0 (latest: v0.11.0)
[INFO] [stderr]       Adding duplicate v0.3.0 (latest: v1.0.0)
[INFO] [stderr]       Adding float-cmp v0.8.0 (latest: v0.9.0)
[INFO] [stderr]       Adding fragile v1.2.2 (latest: v2.0.0)
[INFO] [stderr]       Adding heck v0.3.2 (latest: v0.5.0)
[INFO] [stderr]       Adding mockall v0.10.2 (latest: v0.13.0)
[INFO] [stderr]       Adding mockall_derive v0.10.2 (latest: v0.13.0)
[INFO] [stderr]       Adding predicates v1.0.8 (latest: v3.1.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding termtree v0.4.1 (latest: v0.5.1)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded heck v0.3.2
[INFO] [stderr]   Downloaded mockall v0.10.2
[INFO] [stderr]   Downloaded duplicate v0.3.0
[INFO] [stderr]   Downloaded mockall_derive v0.10.2
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14cb7d2ae072bead56c52cf475dba48db91aac77c556833d5709c8577242605d
[INFO] running `Command { std: "docker" "start" "-a" "14cb7d2ae072bead56c52cf475dba48db91aac77c556833d5709c8577242605d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14cb7d2ae072bead56c52cf475dba48db91aac77c556833d5709c8577242605d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14cb7d2ae072bead56c52cf475dba48db91aac77c556833d5709c8577242605d", kill_on_drop: false }`
[INFO] [stdout] 14cb7d2ae072bead56c52cf475dba48db91aac77c556833d5709c8577242605d
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0cc0b9e297d8873a745070a8347deb9f88143154a541aed085ecfb95f475960
[INFO] running `Command { std: "docker" "start" "-a" "b0cc0b9e297d8873a745070a8347deb9f88143154a541aed085ecfb95f475960", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking predicates-core v1.0.8
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking tagged-tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking predicates-tree v1.0.11
[INFO] [stderr]     Checking fragile v1.2.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]    Compiling mockall_derive v0.10.2
[INFO] [stderr]    Compiling duplicate v0.3.0
[INFO] [stderr]     Checking mockall v0.10.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.36s
[INFO] running `Command { std: "docker" "inspect" "b0cc0b9e297d8873a745070a8347deb9f88143154a541aed085ecfb95f475960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0cc0b9e297d8873a745070a8347deb9f88143154a541aed085ecfb95f475960", kill_on_drop: false }`
[INFO] [stdout] b0cc0b9e297d8873a745070a8347deb9f88143154a541aed085ecfb95f475960