[INFO] fetching crate text_trees 0.1.2...
[INFO] checking text_trees-0.1.2 against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] extracting crate text_trees 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate text_trees 0.1.2 on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate text_trees 0.1.2
[INFO] finished tweaking crates.io crate text_trees 0.1.2
[INFO] tweaked toml for crates.io crate text_trees 0.1.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate text_trees 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e172561350055d8fa19b3ae3b619be057ee0f6afca85e9584a0a336dc95994ea
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e172561350055d8fa19b3ae3b619be057ee0f6afca85e9584a0a336dc95994ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e172561350055d8fa19b3ae3b619be057ee0f6afca85e9584a0a336dc95994ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e172561350055d8fa19b3ae3b619be057ee0f6afca85e9584a0a336dc95994ea", kill_on_drop: false }`
[INFO] [stdout] e172561350055d8fa19b3ae3b619be057ee0f6afca85e9584a0a336dc95994ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47c3743bc1f5a226612d8a724849c6cd32d042b7d554881c364d4fd434aeb7c4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "47c3743bc1f5a226612d8a724849c6cd32d042b7d554881c364d4fd434aeb7c4", kill_on_drop: false }`
[INFO] [stderr]     Checking text_trees v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "47c3743bc1f5a226612d8a724849c6cd32d042b7d554881c364d4fd434aeb7c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c3743bc1f5a226612d8a724849c6cd32d042b7d554881c364d4fd434aeb7c4", kill_on_drop: false }`
[INFO] [stdout] 47c3743bc1f5a226612d8a724849c6cd32d042b7d554881c364d4fd434aeb7c4