[INFO] fetching crate tagged-tree 0.4.0...
[INFO] checking tagged-tree-0.4.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate tagged-tree 0.4.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate tagged-tree 0.4.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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: v2.0.76)
[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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mockall v0.10.2
[INFO] [stderr]   Downloaded downcast v0.10.0
[INFO] [stderr]   Downloaded predicates v1.0.8
[INFO] [stderr]   Downloaded mockall_derive v0.10.2
[INFO] [stderr]   Downloaded duplicate v0.3.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2da3df5bb77f288693f3617df70d83e7f417d935aa148ad25d1327740bbae42
[INFO] running `Command { std: "docker" "start" "-a" "b2da3df5bb77f288693f3617df70d83e7f417d935aa148ad25d1327740bbae42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2da3df5bb77f288693f3617df70d83e7f417d935aa148ad25d1327740bbae42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2da3df5bb77f288693f3617df70d83e7f417d935aa148ad25d1327740bbae42", kill_on_drop: false }`
[INFO] [stdout] b2da3df5bb77f288693f3617df70d83e7f417d935aa148ad25d1327740bbae42
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3a56481604a3841ce1e4a384ff075c78313db8c6509d551adae00a1573d949e
[INFO] running `Command { std: "docker" "start" "-a" "f3a56481604a3841ce1e4a384ff075c78313db8c6509d551adae00a1573d949e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking predicates-core v1.0.8
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking tagged-tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking predicates-tree v1.0.11
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking fragile v1.2.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[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 4.41s
[INFO] running `Command { std: "docker" "inspect" "f3a56481604a3841ce1e4a384ff075c78313db8c6509d551adae00a1573d949e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3a56481604a3841ce1e4a384ff075c78313db8c6509d551adae00a1573d949e", kill_on_drop: false }`
[INFO] [stdout] f3a56481604a3841ce1e4a384ff075c78313db8c6509d551adae00a1573d949e