[INFO] fetching crate scoped-callback 0.2.0...
[INFO] testing scoped-callback-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate scoped-callback 0.2.0 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate scoped-callback 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scoped-callback 0.2.0
[INFO] finished tweaking crates.io crate scoped-callback 0.2.0
[INFO] tweaked toml for crates.io crate scoped-callback 0.2.0 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1db1733d63741ae11ab130dda1e43907dff40ea604806a8876f635c43212c87a
[INFO] running `Command { std: "docker" "start" "-a" "1db1733d63741ae11ab130dda1e43907dff40ea604806a8876f635c43212c87a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1db1733d63741ae11ab130dda1e43907dff40ea604806a8876f635c43212c87a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db1733d63741ae11ab130dda1e43907dff40ea604806a8876f635c43212c87a", kill_on_drop: false }`
[INFO] [stdout] 1db1733d63741ae11ab130dda1e43907dff40ea604806a8876f635c43212c87a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9cb0cd58988747a5d84b9cfcfc1aabc465de478f62275ba2a7521538757e569
[INFO] running `Command { std: "docker" "start" "-a" "b9cb0cd58988747a5d84b9cfcfc1aabc465de478f62275ba2a7521538757e569", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling scoped-callback v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.95s
[INFO] running `Command { std: "docker" "inspect" "b9cb0cd58988747a5d84b9cfcfc1aabc465de478f62275ba2a7521538757e569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9cb0cd58988747a5d84b9cfcfc1aabc465de478f62275ba2a7521538757e569", kill_on_drop: false }`
[INFO] [stdout] b9cb0cd58988747a5d84b9cfcfc1aabc465de478f62275ba2a7521538757e569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee28353b286bf0291af5338c4e353682640cc079f83d1b7aa287b4f2aecca6ac
[INFO] running `Command { std: "docker" "start" "-a" "ee28353b286bf0291af5338c4e353682640cc079f83d1b7aa287b4f2aecca6ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling scoped-callback v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "ee28353b286bf0291af5338c4e353682640cc079f83d1b7aa287b4f2aecca6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee28353b286bf0291af5338c4e353682640cc079f83d1b7aa287b4f2aecca6ac", kill_on_drop: false }`
[INFO] [stdout] ee28353b286bf0291af5338c4e353682640cc079f83d1b7aa287b4f2aecca6ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 70a36da50cb1a65b0b516e70ad9020f73ed491853e372c46e95b38196d2dab9f
[INFO] running `Command { std: "docker" "start" "-a" "70a36da50cb1a65b0b516e70ad9020f73ed491853e372c46e95b38196d2dab9f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scoped_callback-5105876e3a5f606a)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::calling ... ok
[INFO] [stdout] test tests::drop_registered_causes_deregister ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::leaving_scope_causes_deregister ... ok
[INFO] [stdout] test tests::calling_static_callback_after_scope_panics ... ok
[INFO] [stdout] test tests::panic_in_scoped_is_safe ... ok
[INFO] [stdout] test tests::calling_static_callback_after_drop_panics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests scoped-callback
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.88s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "70a36da50cb1a65b0b516e70ad9020f73ed491853e372c46e95b38196d2dab9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a36da50cb1a65b0b516e70ad9020f73ed491853e372c46e95b38196d2dab9f", kill_on_drop: false }`
[INFO] [stdout] 70a36da50cb1a65b0b516e70ad9020f73ed491853e372c46e95b38196d2dab9f