[INFO] cloning repository https://github.com/nroi/waitforfile
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nroi/waitforfile" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnroi%2Fwaitforfile", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnroi%2Fwaitforfile'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf454af04ca07bfea3a80d6cf2e8fc563e9987d4
[INFO] checking nroi/waitforfile against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnroi%2Fwaitforfile" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nroi/waitforfile on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nroi/waitforfile
[INFO] finished tweaking git repo https://github.com/nroi/waitforfile
[INFO] tweaked toml for git repo https://github.com/nroi/waitforfile written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nroi/waitforfile already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]      Locking 1 package
[INFO] [stderr]     Updating waitforfile v0.1.0 (/workspace/builds/worker-1-tc1/source) -> v0.1.8
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-executor v0.1.4
[INFO] [stderr]   Downloaded lock_api v0.1.3
[INFO] [stderr]   Downloaded slab v0.4.1
[INFO] [stderr]   Downloaded futures v0.1.24
[INFO] [stderr]   Downloaded tokio-reactor v0.1.5
[INFO] [stderr]   Downloaded lazycell v1.1.0
[INFO] [stderr]   Downloaded bytes v0.4.10
[INFO] [stderr]   Downloaded tokio-io v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60f761bf60b09242cfb5124a00fbd645e8e7bf992ae35d4a0da9570d2471d05f
[INFO] running `Command { std: "docker" "start" "-a" "60f761bf60b09242cfb5124a00fbd645e8e7bf992ae35d4a0da9570d2471d05f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60f761bf60b09242cfb5124a00fbd645e8e7bf992ae35d4a0da9570d2471d05f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60f761bf60b09242cfb5124a00fbd645e8e7bf992ae35d4a0da9570d2471d05f", kill_on_drop: false }`
[INFO] [stdout] 60f761bf60b09242cfb5124a00fbd645e8e7bf992ae35d4a0da9570d2471d05f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfcc7ab5c8b2a9e79aca1f325b7c46874411cc845fcff8b3fb53e4eefeb5af1f
[INFO] running `Command { std: "docker" "start" "-a" "dfcc7ab5c8b2a9e79aca1f325b7c46874411cc845fcff8b3fb53e4eefeb5af1f", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking futures v0.1.24
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking lazycell v1.1.0
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking tokio-executor v0.1.4
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking waitforfile v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `Command { std: "docker" "inspect" "dfcc7ab5c8b2a9e79aca1f325b7c46874411cc845fcff8b3fb53e4eefeb5af1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfcc7ab5c8b2a9e79aca1f325b7c46874411cc845fcff8b3fb53e4eefeb5af1f", kill_on_drop: false }`
[INFO] [stdout] dfcc7ab5c8b2a9e79aca1f325b7c46874411cc845fcff8b3fb53e4eefeb5af1f
[INFO] checking nroi/waitforfile against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnroi%2Fwaitforfile" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nroi/waitforfile on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nroi/waitforfile
[INFO] finished tweaking git repo https://github.com/nroi/waitforfile
[INFO] tweaked toml for git repo https://github.com/nroi/waitforfile written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/nroi/waitforfile already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]      Locking 1 package
[INFO] [stderr]     Updating waitforfile v0.1.0 (/workspace/builds/worker-1-tc2/source) -> v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df07b9f2ac73d66b9c94db9f6cb8b30d8dc17c31a08202be63d5b62c67d10399
[INFO] running `Command { std: "docker" "start" "-a" "df07b9f2ac73d66b9c94db9f6cb8b30d8dc17c31a08202be63d5b62c67d10399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df07b9f2ac73d66b9c94db9f6cb8b30d8dc17c31a08202be63d5b62c67d10399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df07b9f2ac73d66b9c94db9f6cb8b30d8dc17c31a08202be63d5b62c67d10399", kill_on_drop: false }`
[INFO] [stdout] df07b9f2ac73d66b9c94db9f6cb8b30d8dc17c31a08202be63d5b62c67d10399
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ee8cadd0d9e51d27715aab143aa21cddbb742498a4536e94eb800119bb4ee8f
[INFO] running `Command { std: "docker" "start" "-a" "8ee8cadd0d9e51d27715aab143aa21cddbb742498a4536e94eb800119bb4ee8f", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking futures v0.1.24
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking lazycell v1.1.0
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking tokio-executor v0.1.4
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking waitforfile v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.23s
[INFO] running `Command { std: "docker" "inspect" "8ee8cadd0d9e51d27715aab143aa21cddbb742498a4536e94eb800119bb4ee8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ee8cadd0d9e51d27715aab143aa21cddbb742498a4536e94eb800119bb4ee8f", kill_on_drop: false }`
[INFO] [stdout] 8ee8cadd0d9e51d27715aab143aa21cddbb742498a4536e94eb800119bb4ee8f