[INFO] cloning repository https://github.com/saresend/shack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saresend/shack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaresend%2Fshack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaresend%2Fshack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3773d62601ca91564fbd10c62859297504807cd9
[INFO] checking saresend/shack against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaresend%2Fshack" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saresend/shack on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/saresend/shack
[INFO] finished tweaking git repo https://github.com/saresend/shack
[INFO] tweaked toml for git repo https://github.com/saresend/shack written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/saresend/shack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.38
[INFO] [stderr]   Downloaded serde_derive v1.0.38
[INFO] [stderr]   Downloaded quote v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6b319cb696f8dbd5a0a410d458243e67bbe71a7a88d456351660d348dc04df31
[INFO] running `Command { std: "docker" "start" "-a" "6b319cb696f8dbd5a0a410d458243e67bbe71a7a88d456351660d348dc04df31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b319cb696f8dbd5a0a410d458243e67bbe71a7a88d456351660d348dc04df31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b319cb696f8dbd5a0a410d458243e67bbe71a7a88d456351660d348dc04df31", kill_on_drop: false }`
[INFO] [stdout] 6b319cb696f8dbd5a0a410d458243e67bbe71a7a88d456351660d348dc04df31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3be3cbfc624cce724371676a788c30ef3b92ca96089eaf1c3c3a143ea5e45213
[INFO] running `Command { std: "docker" "start" "-a" "3be3cbfc624cce724371676a788c30ef3b92ca96089eaf1c3c3a143ea5e45213", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking serde v1.0.38
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking xdg v2.1.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling serde_derive v1.0.38
[INFO] [stderr]     Checking serde_json v1.0.16
[INFO] [stderr]     Checking shack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.83s
[INFO] running `Command { std: "docker" "inspect" "3be3cbfc624cce724371676a788c30ef3b92ca96089eaf1c3c3a143ea5e45213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3be3cbfc624cce724371676a788c30ef3b92ca96089eaf1c3c3a143ea5e45213", kill_on_drop: false }`
[INFO] [stdout] 3be3cbfc624cce724371676a788c30ef3b92ca96089eaf1c3c3a143ea5e45213