[INFO] fetching crate stacker 0.1.14...
[INFO] testing stacker-0.1.14 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate stacker 0.1.14 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate stacker 0.1.14 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stacker 0.1.14
[INFO] finished tweaking crates.io crate stacker 0.1.14
[INFO] tweaked toml for crates.io crate stacker 0.1.14 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6b54d12df61388b5ff5dd661271bc4bd4a638507a0cd48ecf45ae6a9031db0e
[INFO] running `Command { std: "docker" "start" "-a" "c6b54d12df61388b5ff5dd661271bc4bd4a638507a0cd48ecf45ae6a9031db0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6b54d12df61388b5ff5dd661271bc4bd4a638507a0cd48ecf45ae6a9031db0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6b54d12df61388b5ff5dd661271bc4bd4a638507a0cd48ecf45ae6a9031db0e", kill_on_drop: false }`
[INFO] [stdout] c6b54d12df61388b5ff5dd661271bc4bd4a638507a0cd48ecf45ae6a9031db0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c86d2958c598ac093750add3c5393679f609e443aeac84e2ba7839fc533252a6
[INFO] running `Command { std: "docker" "start" "-a" "c86d2958c598ac093750add3c5393679f609e443aeac84e2ba7839fc533252a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling psm v0.1.16
[INFO] [stderr]    Compiling stacker v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "c86d2958c598ac093750add3c5393679f609e443aeac84e2ba7839fc533252a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c86d2958c598ac093750add3c5393679f609e443aeac84e2ba7839fc533252a6", kill_on_drop: false }`
[INFO] [stdout] c86d2958c598ac093750add3c5393679f609e443aeac84e2ba7839fc533252a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 254b908879b2f867fb78b7761277f85525d3427142be39fecfb686d04237f8d6
[INFO] running `Command { std: "docker" "start" "-a" "254b908879b2f867fb78b7761277f85525d3427142be39fecfb686d04237f8d6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling stacker v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "254b908879b2f867fb78b7761277f85525d3427142be39fecfb686d04237f8d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254b908879b2f867fb78b7761277f85525d3427142be39fecfb686d04237f8d6", kill_on_drop: false }`
[INFO] [stdout] 254b908879b2f867fb78b7761277f85525d3427142be39fecfb686d04237f8d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a01f972830028c7d24e8f3633233ad14bce4fc4646acaa8810e8e33f2b5bd84
[INFO] running `Command { std: "docker" "start" "-a" "6a01f972830028c7d24e8f3633233ad14bce4fc4646acaa8810e8e33f2b5bd84", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running tests/simple.rs (/opt/rustwide/target/debug/deps/simple-20e7d204fa1e047a)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/smoke.rs (/opt/rustwide/target/debug/deps/smoke-c8c35826c619c566)
[INFO] [stdout] test foo ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.39s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test catch_panic_leaf ... ok
[INFO] [stdout] test catch_panic ... ok
[INFO] [stdout] test catch_panic_inside ... ok
[INFO] [stdout] test deep ... ok
[INFO] [stdout] test panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a01f972830028c7d24e8f3633233ad14bce4fc4646acaa8810e8e33f2b5bd84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a01f972830028c7d24e8f3633233ad14bce4fc4646acaa8810e8e33f2b5bd84", kill_on_drop: false }`
[INFO] [stdout] 6a01f972830028c7d24e8f3633233ad14bce4fc4646acaa8810e8e33f2b5bd84