[INFO] cloning repository https://github.com/nambrot/coursera_crypto [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nambrot/coursera_crypto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnambrot%2Fcoursera_crypto", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnambrot%2Fcoursera_crypto'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4f295870c693139f4ed21fc910fd80a6464029ca [INFO] checking nambrot/coursera_crypto against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnambrot%2Fcoursera_crypto" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nambrot/coursera_crypto 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/nambrot/coursera_crypto [INFO] finished tweaking git repo https://github.com/nambrot/coursera_crypto [INFO] tweaked toml for git repo https://github.com/nambrot/coursera_crypto written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/nambrot/coursera_crypto 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] Downloading crates ... [INFO] [stderr] Downloaded crossbeam-utils v0.6.5 [INFO] [stderr] Downloaded rand_os v0.1.2 [INFO] [stderr] Downloaded crossbeam v0.6.0 [INFO] [stderr] Downloaded crossbeam-epoch v0.7.1 [INFO] [stderr] Downloaded block-buffer v0.7.0 [INFO] [stderr] Downloaded block-padding v0.1.3 [INFO] [stderr] Downloaded opaque-debug v0.2.2 [INFO] [stderr] Downloaded digest v0.8.0 [INFO] [stderr] Downloaded sha2 v0.8.0 [INFO] [stderr] Downloaded tokio v0.1.15 [INFO] [stderr] Downloaded h2 v0.1.16 [INFO] [stderr] Downloaded http v0.1.15 [INFO] [stderr] Downloaded hyper v0.12.24 [INFO] [stderr] Downloaded tokio-sync v0.1.1 [INFO] [stderr] Downloaded crossbeam-channel v0.3.8 [INFO] [stderr] Downloaded tokio-threadpool v0.1.11 [INFO] [stderr] Downloaded tokio-timer v0.2.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 49d4313b700e931ceb97de99c0dbfaa4092d92d6fd630bcfcfd5d3dc2053f515 [INFO] running `Command { std: "docker" "start" "-a" "49d4313b700e931ceb97de99c0dbfaa4092d92d6fd630bcfcfd5d3dc2053f515", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "49d4313b700e931ceb97de99c0dbfaa4092d92d6fd630bcfcfd5d3dc2053f515", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49d4313b700e931ceb97de99c0dbfaa4092d92d6fd630bcfcfd5d3dc2053f515", kill_on_drop: false }` [INFO] [stdout] 49d4313b700e931ceb97de99c0dbfaa4092d92d6fd630bcfcfd5d3dc2053f515 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3bc3e849c552e48916e66ca5b6fa7d5408e97d40e6bf539830a740ea93f12485 [INFO] running `Command { std: "docker" "start" "-a" "3bc3e849c552e48916e66ca5b6fa7d5408e97d40e6bf539830a740ea93f12485", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking futures v0.1.25 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking smallvec v0.6.9 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Compiling httparse v1.3.3 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking block-padding v0.1.3 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Checking string v0.1.3 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand_os v0.1.2 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking try-lock v0.2.2 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking http v0.1.15 [INFO] [stderr] Checking tokio-executor v0.1.6 [INFO] [stderr] Checking tokio-io v0.1.11 [INFO] [stderr] Checking crossbeam-deque v0.6.3 [INFO] [stderr] Checking tokio-sync v0.1.1 [INFO] [stderr] Checking tokio-timer v0.2.10 [INFO] [stderr] Checking tokio-current-thread v0.1.4 [INFO] [stderr] Checking want v0.0.6 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking opaque-debug v0.2.2 [INFO] [stderr] Checking data-encoding v2.1.2 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking generic-array v0.12.0 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking block-buffer v0.7.0 [INFO] [stderr] Checking digest v0.8.0 [INFO] [stderr] Checking tokio-reactor v0.1.8 [INFO] [stderr] Checking crossbeam v0.6.0 [INFO] [stderr] Checking sha2 v0.8.0 [INFO] [stderr] Checking tokio-threadpool v0.1.11 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-fs v0.1.5 [INFO] [stderr] Checking h2 v0.1.16 [INFO] [stderr] Checking tokio v0.1.15 [INFO] [stderr] Checking hyper v0.12.24 [INFO] [stderr] Checking coursera_crypto v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.46s [INFO] running `Command { std: "docker" "inspect" "3bc3e849c552e48916e66ca5b6fa7d5408e97d40e6bf539830a740ea93f12485", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3bc3e849c552e48916e66ca5b6fa7d5408e97d40e6bf539830a740ea93f12485", kill_on_drop: false }` [INFO] [stdout] 3bc3e849c552e48916e66ca5b6fa7d5408e97d40e6bf539830a740ea93f12485 [INFO] checking nambrot/coursera_crypto against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnambrot%2Fcoursera_crypto" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nambrot/coursera_crypto 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/nambrot/coursera_crypto [INFO] finished tweaking git repo https://github.com/nambrot/coursera_crypto [INFO] tweaked toml for git repo https://github.com/nambrot/coursera_crypto written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/nambrot/coursera_crypto 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2b3a5cb52749d4755b04f7959070309a35f8b559586cf66ae08f0309cffe1a39 [INFO] running `Command { std: "docker" "start" "-a" "2b3a5cb52749d4755b04f7959070309a35f8b559586cf66ae08f0309cffe1a39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2b3a5cb52749d4755b04f7959070309a35f8b559586cf66ae08f0309cffe1a39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b3a5cb52749d4755b04f7959070309a35f8b559586cf66ae08f0309cffe1a39", kill_on_drop: false }` [INFO] [stdout] 2b3a5cb52749d4755b04f7959070309a35f8b559586cf66ae08f0309cffe1a39 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a184c4b24a0376d16780988769160d3f48bc81be3309da4e3339f0382a300d34 [INFO] running `Command { std: "docker" "start" "-a" "a184c4b24a0376d16780988769160d3f48bc81be3309da4e3339f0382a300d34", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking futures v0.1.25 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking smallvec v0.6.9 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Compiling httparse v1.3.3 [INFO] [stderr] Checking block-padding v0.1.3 [INFO] [stderr] Checking string v0.1.3 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand_os v0.1.2 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking try-lock v0.2.2 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking http v0.1.15 [INFO] [stderr] Checking tokio-executor v0.1.6 [INFO] [stderr] Checking tokio-io v0.1.11 [INFO] [stderr] Checking crossbeam-deque v0.6.3 [INFO] [stderr] Checking tokio-current-thread v0.1.4 [INFO] [stderr] Checking tokio-timer v0.2.10 [INFO] [stderr] Checking tokio-sync v0.1.1 [INFO] [stderr] Checking want v0.0.6 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking generic-array v0.12.0 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking opaque-debug v0.2.2 [INFO] [stderr] Checking data-encoding v2.1.2 [INFO] [stderr] Checking block-buffer v0.7.0 [INFO] [stderr] Checking digest v0.8.0 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking sha2 v0.8.0 [INFO] [stderr] Checking tokio-reactor v0.1.8 [INFO] [stderr] Checking crossbeam v0.6.0 [INFO] [stderr] Checking tokio-threadpool v0.1.11 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-fs v0.1.5 [INFO] [stderr] Checking h2 v0.1.16 [INFO] [stderr] Checking tokio v0.1.15 [INFO] [stderr] Checking hyper v0.12.24 [INFO] [stderr] Checking coursera_crypto v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.18s [INFO] running `Command { std: "docker" "inspect" "a184c4b24a0376d16780988769160d3f48bc81be3309da4e3339f0382a300d34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a184c4b24a0376d16780988769160d3f48bc81be3309da4e3339f0382a300d34", kill_on_drop: false }` [INFO] [stdout] a184c4b24a0376d16780988769160d3f48bc81be3309da4e3339f0382a300d34