[INFO] fetching crate slack-bk 0.1.1...
[INFO] building slack-bk-0.1.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate slack-bk 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate slack-bk 0.1.1
[INFO] finished tweaking crates.io crate slack-bk 0.1.1
[INFO] tweaked toml for crates.io crate slack-bk 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate slack-bk 0.1.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slack-bk 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 481e6e6d58a3308e5c2deb70b6fa7e7a5faccdee77d11a1da5bee22a87873d02
[INFO] running `Command { std: "docker" "start" "-a" "481e6e6d58a3308e5c2deb70b6fa7e7a5faccdee77d11a1da5bee22a87873d02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "481e6e6d58a3308e5c2deb70b6fa7e7a5faccdee77d11a1da5bee22a87873d02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "481e6e6d58a3308e5c2deb70b6fa7e7a5faccdee77d11a1da5bee22a87873d02", kill_on_drop: false }`
[INFO] [stdout] 481e6e6d58a3308e5c2deb70b6fa7e7a5faccdee77d11a1da5bee22a87873d02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b081d78c8ddb6d3359e9e92815375fec0f8175173bc6a3e267168f75926b3d96
[INFO] running `Command { std: "docker" "start" "-a" "b081d78c8ddb6d3359e9e92815375fec0f8175173bc6a3e267168f75926b3d96", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling slack-bk v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.24s
[INFO] running `Command { std: "docker" "inspect" "b081d78c8ddb6d3359e9e92815375fec0f8175173bc6a3e267168f75926b3d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b081d78c8ddb6d3359e9e92815375fec0f8175173bc6a3e267168f75926b3d96", kill_on_drop: false }`
[INFO] [stdout] b081d78c8ddb6d3359e9e92815375fec0f8175173bc6a3e267168f75926b3d96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef599b297e9b63a7a69263d82d81f4dc1e4a60433a27e5c12695151bb18af19c
[INFO] running `Command { std: "docker" "start" "-a" "ef599b297e9b63a7a69263d82d81f4dc1e4a60433a27e5c12695151bb18af19c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling slack-bk v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.23s
[INFO] running `Command { std: "docker" "inspect" "ef599b297e9b63a7a69263d82d81f4dc1e4a60433a27e5c12695151bb18af19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef599b297e9b63a7a69263d82d81f4dc1e4a60433a27e5c12695151bb18af19c", kill_on_drop: false }`
[INFO] [stdout] ef599b297e9b63a7a69263d82d81f4dc1e4a60433a27e5c12695151bb18af19c