[INFO] fetching crate singularity 0.8.0...
[INFO] testing singularity-0.8.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate singularity 0.8.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate singularity 0.8.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate singularity 0.8.0
[INFO] finished tweaking crates.io crate singularity 0.8.0
[INFO] tweaked toml for crates.io crate singularity 0.8.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate singularity 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 821e3dd3a88e13c5397722fcd832b013cdce0b8e3576f345dbbf8cfb99cb3247
[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" "821e3dd3a88e13c5397722fcd832b013cdce0b8e3576f345dbbf8cfb99cb3247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "821e3dd3a88e13c5397722fcd832b013cdce0b8e3576f345dbbf8cfb99cb3247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "821e3dd3a88e13c5397722fcd832b013cdce0b8e3576f345dbbf8cfb99cb3247", kill_on_drop: false }`
[INFO] [stdout] 821e3dd3a88e13c5397722fcd832b013cdce0b8e3576f345dbbf8cfb99cb3247
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 767537c9c42507fed1b5dfb15b6f2eea64fb2ce02379169b6fd291bb41e604de
[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" "767537c9c42507fed1b5dfb15b6f2eea64fb2ce02379169b6fd291bb41e604de", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling fern v0.6.0
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling console v0.15.0
[INFO] [stderr]    Compiling directories v2.0.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling indicatif v0.16.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-format v0.4.0
[INFO] [stderr]    Compiling webpki v0.22.0
[INFO] [stderr]    Compiling sct v0.7.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling webpki-roots v0.22.2
[INFO] [stderr]    Compiling rustls v0.20.2
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling ureq v2.4.0
[INFO] [stderr]    Compiling confy v0.4.0
[INFO] [stderr]    Compiling singularity v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.31s
[INFO] running `Command { std: "docker" "inspect" "767537c9c42507fed1b5dfb15b6f2eea64fb2ce02379169b6fd291bb41e604de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "767537c9c42507fed1b5dfb15b6f2eea64fb2ce02379169b6fd291bb41e604de", kill_on_drop: false }`
[INFO] [stdout] 767537c9c42507fed1b5dfb15b6f2eea64fb2ce02379169b6fd291bb41e604de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a92d3f8d84ca9a38c8a0927caed2bf41cc871302ab4407e2e42ad1ce48f34a8
[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" "6a92d3f8d84ca9a38c8a0927caed2bf41cc871302ab4407e2e42ad1ce48f34a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling singularity v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "6a92d3f8d84ca9a38c8a0927caed2bf41cc871302ab4407e2e42ad1ce48f34a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a92d3f8d84ca9a38c8a0927caed2bf41cc871302ab4407e2e42ad1ce48f34a8", kill_on_drop: false }`
[INFO] [stdout] 6a92d3f8d84ca9a38c8a0927caed2bf41cc871302ab4407e2e42ad1ce48f34a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eeaa38d25805862cf80d191cb7b38e423cda431cb3695404afec0e2be3f023f6
[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" "eeaa38d25805862cf80d191cb7b38e423cda431cb3695404afec0e2be3f023f6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/singularity-d25c8d98dbbbd3a5)
[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" "eeaa38d25805862cf80d191cb7b38e423cda431cb3695404afec0e2be3f023f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeaa38d25805862cf80d191cb7b38e423cda431cb3695404afec0e2be3f023f6", kill_on_drop: false }`
[INFO] [stdout] eeaa38d25805862cf80d191cb7b38e423cda431cb3695404afec0e2be3f023f6