[INFO] cloning repository https://github.com/alexeagleson/apprentice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexeagleson/apprentice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexeagleson%2Fapprentice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexeagleson%2Fapprentice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fde06eebaf27d3df6cfcfa9f263427f36a57f765
[INFO] testing alexeagleson/apprentice against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexeagleson%2Fapprentice" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexeagleson/apprentice on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexeagleson/apprentice
[INFO] finished tweaking git repo https://github.com/alexeagleson/apprentice
[INFO] tweaked toml for git repo https://github.com/alexeagleson/apprentice written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/alexeagleson/apprentice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hashbrown v0.6.3
[INFO] [stderr]   Downloaded wide v0.4.3
[INFO] [stderr]   Downloaded core-video-sys v0.1.3
[INFO] [stderr]   Downloaded thread_local v1.0.0
[INFO] [stderr]   Downloaded glutin v0.24.0
[INFO] [stderr]   Downloaded bracket-noise v0.8.0
[INFO] [stderr]   Downloaded bracket-geometry v0.8.0
[INFO] [stderr]   Downloaded instant v0.1.2
[INFO] [stderr]   Downloaded image v0.23.3
[INFO] [stderr]   Downloaded const-random-macro v0.1.6
[INFO] [stderr]   Downloaded ultraviolet v0.4.5
[INFO] [stderr]   Downloaded const-random v0.1.6
[INFO] [stderr]   Downloaded cocoa v0.19.1
[INFO] [stderr]   Downloaded ahash v0.2.18
[INFO] [stderr]   Downloaded specs-derive v0.4.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.7
[INFO] [stderr]   Downloaded bracket-pathfinding v0.8.0
[INFO] [stderr]   Downloaded bracket-algorithm-traits v0.8.0
[INFO] [stderr]   Downloaded png v0.16.2
[INFO] [stderr]   Downloaded bytemuck v1.1.0
[INFO] [stderr]   Downloaded shred v0.9.4
[INFO] [stderr]   Downloaded derivative v1.0.3
[INFO] [stderr]   Downloaded specs v0.15.1
[INFO] [stderr]   Downloaded bracket-color v0.8.0
[INFO] [stderr]   Downloaded bracket-terminal v0.8.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.0
[INFO] [stderr]   Downloaded bracket-lib v0.8.0
[INFO] [stderr]   Downloaded rltk v0.8.0
[INFO] [stderr]   Downloaded hibitset v0.6.2
[INFO] [stderr]   Downloaded winit v0.22.0
[INFO] [stderr]   Downloaded syn v1.0.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 6897b784935659bf21e3624135502d114427cd469d187d9c08614c14f02105d0
[INFO] running `Command { std: "docker" "start" "-a" "6897b784935659bf21e3624135502d114427cd469d187d9c08614c14f02105d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6897b784935659bf21e3624135502d114427cd469d187d9c08614c14f02105d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6897b784935659bf21e3624135502d114427cd469d187d9c08614c14f02105d0", kill_on_drop: false }`
[INFO] [stdout] 6897b784935659bf21e3624135502d114427cd469d187d9c08614c14f02105d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e69f5627e14629e6949a590ce6b64370e201fc101fc84f971929379d9234075f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e69f5627e14629e6949a590ce6b64370e201fc101fc84f971929379d9234075f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling wide v0.4.3
[INFO] [stderr]    Compiling bytemuck v1.1.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.59
[INFO] [stderr]    Compiling bumpalo v3.1.2
[INFO] [stderr]    Compiling instant v0.1.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.59
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling thread_local v1.0.0
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.6
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.4
[INFO] [stderr]    Compiling glow v0.4.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling specs-derive v0.4.0
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling rusttype v0.8.2
[INFO] [stderr]    Compiling wayland-sys v0.23.6
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling image v0.23.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling ultraviolet v0.4.5
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling wayland-commons v0.23.6
[INFO] [stderr]    Compiling calloop v0.4.4
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling hibitset v0.6.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.59
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.59
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.59
[INFO] [stderr]    Compiling const-random-macro v0.1.6
[INFO] [stderr]    Compiling const-random v0.1.6
[INFO] [stderr]    Compiling ahash v0.2.18
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling shred v0.9.4
[INFO] [stderr]    Compiling js-sys v0.3.36
[INFO] [stderr]    Compiling smithay-client-toolkit v0.6.6
[INFO] [stderr]    Compiling winit v0.22.0
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling web-sys v0.3.36
[INFO] [stderr]    Compiling glutin v0.24.0
[INFO] [stderr]    Compiling bracket-geometry v0.8.0
[INFO] [stderr]    Compiling bracket-random v0.8.0
[INFO] [stderr]    Compiling object-pool v0.4.4
[INFO] [stderr]    Compiling bracket-color v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling specs v0.15.1
[INFO] [stderr]    Compiling bracket-noise v0.8.0
[INFO] [stderr]    Compiling bracket-algorithm-traits v0.8.0
[INFO] [stderr]    Compiling bracket-terminal v0.8.0
[INFO] [stderr]    Compiling bracket-pathfinding v0.8.0
[INFO] [stderr]    Compiling bracket-lib v0.8.0
[INFO] [stderr]    Compiling rltk v0.8.0
[INFO] [stderr]    Compiling apprentice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 05s
[INFO] running `Command { std: "docker" "inspect" "e69f5627e14629e6949a590ce6b64370e201fc101fc84f971929379d9234075f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e69f5627e14629e6949a590ce6b64370e201fc101fc84f971929379d9234075f", kill_on_drop: false }`
[INFO] [stdout] e69f5627e14629e6949a590ce6b64370e201fc101fc84f971929379d9234075f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cd58def0055b9ae110381644453efc1f47fba1bc11598008f30512af4dd5fbb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9cd58def0055b9ae110381644453efc1f47fba1bc11598008f30512af4dd5fbb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling apprentice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 24.58s
[INFO] running `Command { std: "docker" "inspect" "9cd58def0055b9ae110381644453efc1f47fba1bc11598008f30512af4dd5fbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cd58def0055b9ae110381644453efc1f47fba1bc11598008f30512af4dd5fbb", kill_on_drop: false }`
[INFO] [stdout] 9cd58def0055b9ae110381644453efc1f47fba1bc11598008f30512af4dd5fbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb30d57bf0d5db0b0452a415c2433cbda896ca6eadc01970957a4791b687bbef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "eb30d57bf0d5db0b0452a415c2433cbda896ca6eadc01970957a4791b687bbef", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/apprentice_lib-b9eb96b716074b42
[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] [stderr]      Running /opt/rustwide/target/debug/deps/apprentice-4fe53e5a0210a032
[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] [stderr]    Doc-tests apprentice_lib
[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" "eb30d57bf0d5db0b0452a415c2433cbda896ca6eadc01970957a4791b687bbef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb30d57bf0d5db0b0452a415c2433cbda896ca6eadc01970957a4791b687bbef", kill_on_drop: false }`
[INFO] [stdout] eb30d57bf0d5db0b0452a415c2433cbda896ca6eadc01970957a4791b687bbef