[INFO] cloning repository https://github.com/Callum-Irving/Seashell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Callum-Irving/Seashell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCallum-Irving%2FSeashell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCallum-Irving%2FSeashell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41c167b50472d0248fc86aa1ba3fa9911558f510
[INFO] checking Callum-Irving/Seashell against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCallum-Irving%2FSeashell" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Callum-Irving/Seashell 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/Callum-Irving/Seashell
[INFO] finished tweaking git repo https://github.com/Callum-Irving/Seashell
[INFO] tweaked toml for git repo https://github.com/Callum-Irving/Seashell written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Callum-Irving/Seashell 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum v0.24.0
[INFO] [stderr]   Downloaded strum_macros v0.24.0
[INFO] [stderr]   Downloaded nu-ansi-term v0.45.1
[INFO] [stderr]   Downloaded io-lifetimes v0.6.1
[INFO] [stderr]   Downloaded pathsearch v0.2.0
[INFO] [stderr]   Downloaded fd-lock v3.0.5
[INFO] [stderr]   Downloaded rustix v0.34.6
[INFO] [stderr]   Downloaded windows-sys v0.30.0
[INFO] [stderr]   Downloaded reedline v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e7ef93e236eded84e0fd33af33566b215e511ab46df4ac08ed5fc10f7664e427
[INFO] running `Command { std: "docker" "start" "-a" "e7ef93e236eded84e0fd33af33566b215e511ab46df4ac08ed5fc10f7664e427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7ef93e236eded84e0fd33af33566b215e511ab46df4ac08ed5fc10f7664e427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ef93e236eded84e0fd33af33566b215e511ab46df4ac08ed5fc10f7664e427", kill_on_drop: false }`
[INFO] [stdout] e7ef93e236eded84e0fd33af33566b215e511ab46df4ac08ed5fc10f7664e427
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b3b5886d1cbce8ef975bb6baa2dcdf4c84eba679a6b984745ffc3f7b70a0c15f
[INFO] running `Command { std: "docker" "start" "-a" "b3b5886d1cbce8ef975bb6baa2dcdf4c84eba679a6b984745ffc3f7b70a0c15f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling io-lifetimes v0.6.1
[INFO] [stderr]    Compiling rustix v0.34.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking linux-raw-sys v0.0.46
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking nu-ansi-term v0.45.1
[INFO] [stderr]     Checking strum v0.24.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking pathsearch v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking vte v0.10.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.1
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]     Checking fd-lock v3.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling strum_macros v0.24.0
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]     Checking reedline v0.4.0
[INFO] [stderr]     Checking seashell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.81s
[INFO] running `Command { std: "docker" "inspect" "b3b5886d1cbce8ef975bb6baa2dcdf4c84eba679a6b984745ffc3f7b70a0c15f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3b5886d1cbce8ef975bb6baa2dcdf4c84eba679a6b984745ffc3f7b70a0c15f", kill_on_drop: false }`
[INFO] [stdout] b3b5886d1cbce8ef975bb6baa2dcdf4c84eba679a6b984745ffc3f7b70a0c15f
[INFO] checking Callum-Irving/Seashell against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCallum-Irving%2FSeashell" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Callum-Irving/Seashell 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/Callum-Irving/Seashell
[INFO] finished tweaking git repo https://github.com/Callum-Irving/Seashell
[INFO] tweaked toml for git repo https://github.com/Callum-Irving/Seashell written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Callum-Irving/Seashell 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 63a7211377e555edc792df0b5c0e5de9af7efd4f54eac23d84e1907e6370ebd9
[INFO] running `Command { std: "docker" "start" "-a" "63a7211377e555edc792df0b5c0e5de9af7efd4f54eac23d84e1907e6370ebd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63a7211377e555edc792df0b5c0e5de9af7efd4f54eac23d84e1907e6370ebd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a7211377e555edc792df0b5c0e5de9af7efd4f54eac23d84e1907e6370ebd9", kill_on_drop: false }`
[INFO] [stdout] 63a7211377e555edc792df0b5c0e5de9af7efd4f54eac23d84e1907e6370ebd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 21379d03a04b51f7b639099554de3c27ffeb53fb49477488507f7daa4424c9d9
[INFO] running `Command { std: "docker" "start" "-a" "21379d03a04b51f7b639099554de3c27ffeb53fb49477488507f7daa4424c9d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling io-lifetimes v0.6.1
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling rustix v0.34.6
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking linux-raw-sys v0.0.46
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking nu-ansi-term v0.45.1
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking strum v0.24.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking pathsearch v0.2.0
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking vte v0.10.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.1
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]     Checking fd-lock v3.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling strum_macros v0.24.0
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]     Checking reedline v0.4.0
[INFO] [stderr]     Checking seashell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.20s
[INFO] running `Command { std: "docker" "inspect" "21379d03a04b51f7b639099554de3c27ffeb53fb49477488507f7daa4424c9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21379d03a04b51f7b639099554de3c27ffeb53fb49477488507f7daa4424c9d9", kill_on_drop: false }`
[INFO] [stdout] 21379d03a04b51f7b639099554de3c27ffeb53fb49477488507f7daa4424c9d9