[INFO] fetching crate silkbag 0.0.1...
[INFO] testing silkbag-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate silkbag 0.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate silkbag 0.0.1 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 silkbag 0.0.1
[INFO] finished tweaking crates.io crate silkbag 0.0.1
[INFO] tweaked toml for crates.io crate silkbag 0.0.1 written to /workspace/builds/worker-0/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tar v0.4.37
[INFO] [stderr]   Downloaded glib v0.14.5
[INFO] [stderr]   Downloaded flate2 v0.2.20
[INFO] [stderr]   Downloaded strum v0.21.0
[INFO] [stderr]   Downloaded cairo-sys-rs v0.14.0
[INFO] [stderr]   Downloaded glib-sys v0.14.0
[INFO] [stderr]   Downloaded proc-macro-crate v1.0.0
[INFO] [stderr]   Downloaded nalgebra v0.29.0
[INFO] [stderr]   Downloaded glib-macros v0.14.1
[INFO] [stderr]   Downloaded strum_macros v0.21.1
[INFO] [stderr]   Downloaded gobject-sys v0.14.0
[INFO] [stderr]   Downloaded cfg-expr v0.8.1
[INFO] [stderr]   Downloaded nalgebra-macros v0.1.0
[INFO] [stderr]   Downloaded system-deps v3.2.0
[INFO] [stderr]   Downloaded cairo-rs v0.14.3
[INFO] [stderr]   Downloaded imagefmt v4.0.0
[INFO] [stderr]   Downloaded version-compare v0.0.11
[INFO] [stderr]   Downloaded rawpointer v0.2.1
[INFO] [stderr]   Downloaded matrixmultiply v0.3.1
[INFO] [stderr]   Downloaded simba v0.6.0
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 1f1a052b22deb64138634294abded914801c6a11b7b658cd3909ebc75c81d7d1
[INFO] running `Command { std: "docker" "start" "-a" "1f1a052b22deb64138634294abded914801c6a11b7b658cd3909ebc75c81d7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f1a052b22deb64138634294abded914801c6a11b7b658cd3909ebc75c81d7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f1a052b22deb64138634294abded914801c6a11b7b658cd3909ebc75c81d7d1", kill_on_drop: false }`
[INFO] [stdout] 1f1a052b22deb64138634294abded914801c6a11b7b658cd3909ebc75c81d7d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] d7614cee767b075cb14bc9abca0d4883a874b87040cce17b3aeeb2b450edc1f7
[INFO] running `Command { std: "docker" "start" "-a" "d7614cee767b075cb14bc9abca0d4883a874b87040cce17b3aeeb2b450edc1f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling cfg-expr v0.8.1
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling safe_arch v0.6.0
[INFO] [stderr]    Compiling approx v0.5.0
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling tar v0.4.37
[INFO] [stderr]    Compiling wide v0.7.0
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling imagefmt v4.0.0
[INFO] [stderr]    Compiling simba v0.6.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling system-deps v3.2.0
[INFO] [stderr]    Compiling glib-macros v0.14.1
[INFO] [stderr]    Compiling glib-sys v0.14.0
[INFO] [stderr]    Compiling gobject-sys v0.14.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.14.0
[INFO] [stderr]    Compiling nalgebra v0.29.0
[INFO] [stderr]    Compiling glib v0.14.5
[INFO] [stderr]    Compiling cairo-rs v0.14.3
[INFO] [stderr]    Compiling silkbag v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.97s
[INFO] running `Command { std: "docker" "inspect" "d7614cee767b075cb14bc9abca0d4883a874b87040cce17b3aeeb2b450edc1f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7614cee767b075cb14bc9abca0d4883a874b87040cce17b3aeeb2b450edc1f7", kill_on_drop: false }`
[INFO] [stdout] d7614cee767b075cb14bc9abca0d4883a874b87040cce17b3aeeb2b450edc1f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 1fd69254d13a7df8dff13fb9cd4b984c1677d33723d07f8ab36b563e8cace9a8
[INFO] running `Command { std: "docker" "start" "-a" "1fd69254d13a7df8dff13fb9cd4b984c1677d33723d07f8ab36b563e8cace9a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling silkbag v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "1fd69254d13a7df8dff13fb9cd4b984c1677d33723d07f8ab36b563e8cace9a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd69254d13a7df8dff13fb9cd4b984c1677d33723d07f8ab36b563e8cace9a8", kill_on_drop: false }`
[INFO] [stdout] 1fd69254d13a7df8dff13fb9cd4b984c1677d33723d07f8ab36b563e8cace9a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] a288b9534a28e33c29b25a07156a7f0bebbd75d80b68a4f3420db4b821f64969
[INFO] running `Command { std: "docker" "start" "-a" "a288b9534a28e33c29b25a07156a7f0bebbd75d80b68a4f3420db4b821f64969", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/silkbag-ddd83f9a0d675b8e)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/silkbag-8c78adbbf0e32214)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests silkbag
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a288b9534a28e33c29b25a07156a7f0bebbd75d80b68a4f3420db4b821f64969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a288b9534a28e33c29b25a07156a7f0bebbd75d80b68a4f3420db4b821f64969", kill_on_drop: false }`
[INFO] [stdout] a288b9534a28e33c29b25a07156a7f0bebbd75d80b68a4f3420db4b821f64969