[INFO] fetching crate dot_tree 1.0.1...
[INFO] checking dot_tree-1.0.1 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate dot_tree 1.0.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate dot_tree 1.0.1 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 dot_tree 1.0.1
[INFO] finished tweaking crates.io crate dot_tree 1.0.1
[INFO] tweaked toml for crates.io crate dot_tree 1.0.1 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding strum v0.25.0 (latest: v0.26.3)
[INFO] [stderr]       Adding strum_macros v0.25.3 (latest: v0.26.4)
[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] 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffac9fef7e4b3018e45d8eaab1f2b8d18edf9ad7f274e45c93b42bc2ba054d87
[INFO] running `Command { std: "docker" "start" "-a" "ffac9fef7e4b3018e45d8eaab1f2b8d18edf9ad7f274e45c93b42bc2ba054d87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffac9fef7e4b3018e45d8eaab1f2b8d18edf9ad7f274e45c93b42bc2ba054d87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffac9fef7e4b3018e45d8eaab1f2b8d18edf9ad7f274e45c93b42bc2ba054d87", kill_on_drop: false }`
[INFO] [stdout] ffac9fef7e4b3018e45d8eaab1f2b8d18edf9ad7f274e45c93b42bc2ba054d87
[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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 646c64b25303f74b4418e4e12d13b7560005bbb45cf5774b1a4e3ecadced7c8c
[INFO] running `Command { std: "docker" "start" "-a" "646c64b25303f74b4418e4e12d13b7560005bbb45cf5774b1a4e3ecadced7c8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]     Checking dot_tree v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `Command { std: "docker" "inspect" "646c64b25303f74b4418e4e12d13b7560005bbb45cf5774b1a4e3ecadced7c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646c64b25303f74b4418e4e12d13b7560005bbb45cf5774b1a4e3ecadced7c8c", kill_on_drop: false }`
[INFO] [stdout] 646c64b25303f74b4418e4e12d13b7560005bbb45cf5774b1a4e3ecadced7c8c
[INFO] checking dot_tree-1.0.1 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate dot_tree 1.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate dot_tree 1.0.1 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 dot_tree 1.0.1
[INFO] finished tweaking crates.io crate dot_tree 1.0.1
[INFO] tweaked toml for crates.io crate dot_tree 1.0.1 written to /workspace/builds/worker-3-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 9 packages to latest compatible versions
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding strum v0.25.0 (latest: v0.26.3)
[INFO] [stderr]       Adding strum_macros v0.25.3 (latest: v0.26.4)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e3053ff80ebe8016f06dd662b963b307d6f2bd05cd4d15d5d8dce0431f18f33b
[INFO] running `Command { std: "docker" "start" "-a" "e3053ff80ebe8016f06dd662b963b307d6f2bd05cd4d15d5d8dce0431f18f33b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3053ff80ebe8016f06dd662b963b307d6f2bd05cd4d15d5d8dce0431f18f33b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3053ff80ebe8016f06dd662b963b307d6f2bd05cd4d15d5d8dce0431f18f33b", kill_on_drop: false }`
[INFO] [stdout] e3053ff80ebe8016f06dd662b963b307d6f2bd05cd4d15d5d8dce0431f18f33b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 38c6bf09184a9574354f64880b7418ae22256d745fc4da46084f0cae1ad720c4
[INFO] running `Command { std: "docker" "start" "-a" "38c6bf09184a9574354f64880b7418ae22256d745fc4da46084f0cae1ad720c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]     Checking dot_tree v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `Command { std: "docker" "inspect" "38c6bf09184a9574354f64880b7418ae22256d745fc4da46084f0cae1ad720c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38c6bf09184a9574354f64880b7418ae22256d745fc4da46084f0cae1ad720c4", kill_on_drop: false }`
[INFO] [stdout] 38c6bf09184a9574354f64880b7418ae22256d745fc4da46084f0cae1ad720c4