[INFO] cloning repository https://github.com/StarfishGroup/starfish-common
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StarfishGroup/starfish-common" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStarfishGroup%2Fstarfish-common", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStarfishGroup%2Fstarfish-common'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec9671ff571febfe341b3eeb76e6c0230325c27d
[INFO] checking StarfishGroup/starfish-common against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStarfishGroup%2Fstarfish-common" "/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/StarfishGroup/starfish-common 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/StarfishGroup/starfish-common
[INFO] finished tweaking git repo https://github.com/StarfishGroup/starfish-common
[INFO] tweaked toml for git repo https://github.com/StarfishGroup/starfish-common written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/StarfishGroup/starfish-common 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 snowflaked v1.0.3
[INFO] [stderr]   Downloaded rustls-pki-types v1.4.0
[INFO] [stderr]   Downloaded reqwest v0.12.1
[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] d16c1ae2c1fe2b884137a838ca0e9fb6b5ba907176c6aaa63ab98c06c6cda527
[INFO] running `Command { std: "docker" "start" "-a" "d16c1ae2c1fe2b884137a838ca0e9fb6b5ba907176c6aaa63ab98c06c6cda527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d16c1ae2c1fe2b884137a838ca0e9fb6b5ba907176c6aaa63ab98c06c6cda527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d16c1ae2c1fe2b884137a838ca0e9fb6b5ba907176c6aaa63ab98c06c6cda527", kill_on_drop: false }`
[INFO] [stdout] d16c1ae2c1fe2b884137a838ca0e9fb6b5ba907176c6aaa63ab98c06c6cda527
[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] 359e663875bf96500a30f11446b2abf45d6500e1a1f226341cc85b7c96453708
[INFO] running `Command { std: "docker" "start" "-a" "359e663875bf96500a30f11446b2abf45d6500e1a1f226341cc85b7c96453708", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling async-trait v0.1.78
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking starfish-common v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.60s
[INFO] running `Command { std: "docker" "inspect" "359e663875bf96500a30f11446b2abf45d6500e1a1f226341cc85b7c96453708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "359e663875bf96500a30f11446b2abf45d6500e1a1f226341cc85b7c96453708", kill_on_drop: false }`
[INFO] [stdout] 359e663875bf96500a30f11446b2abf45d6500e1a1f226341cc85b7c96453708
[INFO] checking StarfishGroup/starfish-common against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStarfishGroup%2Fstarfish-common" "/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/StarfishGroup/starfish-common 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/StarfishGroup/starfish-common
[INFO] finished tweaking git repo https://github.com/StarfishGroup/starfish-common
[INFO] tweaked toml for git repo https://github.com/StarfishGroup/starfish-common written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/StarfishGroup/starfish-common 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] 6eff00cbb584ed6eb2f80d2ae6210685a9a8c364925abd408bc10d1871c13634
[INFO] running `Command { std: "docker" "start" "-a" "6eff00cbb584ed6eb2f80d2ae6210685a9a8c364925abd408bc10d1871c13634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6eff00cbb584ed6eb2f80d2ae6210685a9a8c364925abd408bc10d1871c13634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eff00cbb584ed6eb2f80d2ae6210685a9a8c364925abd408bc10d1871c13634", kill_on_drop: false }`
[INFO] [stdout] 6eff00cbb584ed6eb2f80d2ae6210685a9a8c364925abd408bc10d1871c13634
[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] 717a49cbfe41ee00f9bdc65aebd5aa87ebeb1e135be50bbc54dd8dd768f02f39
[INFO] running `Command { std: "docker" "start" "-a" "717a49cbfe41ee00f9bdc65aebd5aa87ebeb1e135be50bbc54dd8dd768f02f39", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling async-trait v0.1.78
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking starfish-common v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.06s
[INFO] running `Command { std: "docker" "inspect" "717a49cbfe41ee00f9bdc65aebd5aa87ebeb1e135be50bbc54dd8dd768f02f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "717a49cbfe41ee00f9bdc65aebd5aa87ebeb1e135be50bbc54dd8dd768f02f39", kill_on_drop: false }`
[INFO] [stdout] 717a49cbfe41ee00f9bdc65aebd5aa87ebeb1e135be50bbc54dd8dd768f02f39