[INFO] cloning repository https://github.com/reu/zclib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reu/zclib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freu%2Fzclib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freu%2Fzclib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1402881a8bfa4c2123a717a4fdfaf003afc185ae
[INFO] checking reu/zclib against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freu%2Fzclib" "/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/reu/zclib 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/reu/zclib
[INFO] finished tweaking git repo https://github.com/reu/zclib
[INFO] tweaked toml for git repo https://github.com/reu/zclib written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/reu/zclib 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 zclib v0.1.1 (/workspace/builds/worker-6-tc1/source) -> v0.1.2
[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] 3c1790d045b8ae1905df5de099e7223a57f2b7d6a32b213609109f27cf732c7b
[INFO] running `Command { std: "docker" "start" "-a" "3c1790d045b8ae1905df5de099e7223a57f2b7d6a32b213609109f27cf732c7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c1790d045b8ae1905df5de099e7223a57f2b7d6a32b213609109f27cf732c7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c1790d045b8ae1905df5de099e7223a57f2b7d6a32b213609109f27cf732c7b", kill_on_drop: false }`
[INFO] [stdout] 3c1790d045b8ae1905df5de099e7223a57f2b7d6a32b213609109f27cf732c7b
[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] 7b1d4560fc88ccd7c6c5c17b6d7f4da2d88f6f114493501ed6a12246bb478ec6
[INFO] running `Command { std: "docker" "start" "-a" "7b1d4560fc88ccd7c6c5c17b6d7f4da2d88f6f114493501ed6a12246bb478ec6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking assert_cmd v1.0.8
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking zclib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.59s
[INFO] running `Command { std: "docker" "inspect" "7b1d4560fc88ccd7c6c5c17b6d7f4da2d88f6f114493501ed6a12246bb478ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b1d4560fc88ccd7c6c5c17b6d7f4da2d88f6f114493501ed6a12246bb478ec6", kill_on_drop: false }`
[INFO] [stdout] 7b1d4560fc88ccd7c6c5c17b6d7f4da2d88f6f114493501ed6a12246bb478ec6
[INFO] checking reu/zclib against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freu%2Fzclib" "/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/reu/zclib 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/reu/zclib
[INFO] finished tweaking git repo https://github.com/reu/zclib
[INFO] tweaked toml for git repo https://github.com/reu/zclib written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/reu/zclib 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 1 package
[INFO] [stderr]     Updating zclib v0.1.1 (/workspace/builds/worker-6-tc2/source) -> v0.1.2
[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] 42fb04b76d543be132a2fcc37874e4f389fcb0ad847cdc0660604c518e90e48b
[INFO] running `Command { std: "docker" "start" "-a" "42fb04b76d543be132a2fcc37874e4f389fcb0ad847cdc0660604c518e90e48b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42fb04b76d543be132a2fcc37874e4f389fcb0ad847cdc0660604c518e90e48b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42fb04b76d543be132a2fcc37874e4f389fcb0ad847cdc0660604c518e90e48b", kill_on_drop: false }`
[INFO] [stdout] 42fb04b76d543be132a2fcc37874e4f389fcb0ad847cdc0660604c518e90e48b
[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] 7a119fffa5ced1b44a48a6542ad64327afc1adfec4a61ba522efa23d1869a21e
[INFO] running `Command { std: "docker" "start" "-a" "7a119fffa5ced1b44a48a6542ad64327afc1adfec4a61ba522efa23d1869a21e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking assert_cmd v1.0.8
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking zclib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.46s
[INFO] running `Command { std: "docker" "inspect" "7a119fffa5ced1b44a48a6542ad64327afc1adfec4a61ba522efa23d1869a21e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a119fffa5ced1b44a48a6542ad64327afc1adfec4a61ba522efa23d1869a21e", kill_on_drop: false }`
[INFO] [stdout] 7a119fffa5ced1b44a48a6542ad64327afc1adfec4a61ba522efa23d1869a21e