[INFO] cloning repository https://github.com/natreed/rust_tree_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/natreed/rust_tree_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatreed%2Frust_tree_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatreed%2Frust_tree_lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 413fcd4e5415ce33fb32512f92a9f8e017f3f9f5
[INFO] checking natreed/rust_tree_lib against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatreed%2Frust_tree_lib" "/workspace/builds/worker-88/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-88/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/natreed/rust_tree_lib on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/natreed/rust_tree_lib
[INFO] finished tweaking git repo https://github.com/natreed/rust_tree_lib
[INFO] tweaked toml for git repo https://github.com/natreed/rust_tree_lib written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] crate git repo https://github.com/natreed/rust_tree_lib already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afa2c5b0ba6138d3aa733477889cb3c81b5c792b5104b3c5b85d8b759171ea43
[INFO] running `Command { std: "docker" "start" "-a" "afa2c5b0ba6138d3aa733477889cb3c81b5c792b5104b3c5b85d8b759171ea43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afa2c5b0ba6138d3aa733477889cb3c81b5c792b5104b3c5b85d8b759171ea43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afa2c5b0ba6138d3aa733477889cb3c81b5c792b5104b3c5b85d8b759171ea43", kill_on_drop: false }`
[INFO] [stdout] afa2c5b0ba6138d3aa733477889cb3c81b5c792b5104b3c5b85d8b759171ea43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 841329d02acef1e2e378f870d24bc77645ac791953f2ce597cbd78b9a8d6d283
[INFO] running `Command { std: "docker" "start" "-a" "841329d02acef1e2e378f870d24bc77645ac791953f2ce597cbd78b9a8d6d283", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking generic_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "841329d02acef1e2e378f870d24bc77645ac791953f2ce597cbd78b9a8d6d283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "841329d02acef1e2e378f870d24bc77645ac791953f2ce597cbd78b9a8d6d283", kill_on_drop: false }`
[INFO] [stdout] 841329d02acef1e2e378f870d24bc77645ac791953f2ce597cbd78b9a8d6d283