[INFO] cloning repository https://github.com/mystor/cargo-no_std-check
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mystor/cargo-no_std-check" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmystor%2Fcargo-no_std-check", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmystor%2Fcargo-no_std-check'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ba43bda7c3959a58c879dd9f89a225e0f58195a
[INFO] checking mystor/cargo-no_std-check against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmystor%2Fcargo-no_std-check" "/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/mystor/cargo-no_std-check 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/mystor/cargo-no_std-check
[INFO] finished tweaking git repo https://github.com/mystor/cargo-no_std-check
[INFO] tweaked toml for git repo https://github.com/mystor/cargo-no_std-check written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mystor/cargo-no_std-check 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 assert_cmd v1.0.2
[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] b22fb5770af963c74c5b9c8c8d9e3248266b7aff47a1cb0baeb4a93bc561bf96
[INFO] running `Command { std: "docker" "start" "-a" "b22fb5770af963c74c5b9c8c8d9e3248266b7aff47a1cb0baeb4a93bc561bf96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b22fb5770af963c74c5b9c8c8d9e3248266b7aff47a1cb0baeb4a93bc561bf96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b22fb5770af963c74c5b9c8c8d9e3248266b7aff47a1cb0baeb4a93bc561bf96", kill_on_drop: false }`
[INFO] [stdout] b22fb5770af963c74c5b9c8c8d9e3248266b7aff47a1cb0baeb4a93bc561bf96
[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] b2d3ee228d4fe1cec30e074334e3d0256d5ca1959af7c6c6aac8db7d33b0d836
[INFO] running `Command { std: "docker" "start" "-a" "b2d3ee228d4fe1cec30e074334e3d0256d5ca1959af7c6c6aac8db7d33b0d836", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking shell-escape v0.1.5
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking rustc_version v0.3.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking console v0.14.0
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking assert_cmd v1.0.2
[INFO] [stderr]     Checking cargo-no-std-check v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.92s
[INFO] running `Command { std: "docker" "inspect" "b2d3ee228d4fe1cec30e074334e3d0256d5ca1959af7c6c6aac8db7d33b0d836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2d3ee228d4fe1cec30e074334e3d0256d5ca1959af7c6c6aac8db7d33b0d836", kill_on_drop: false }`
[INFO] [stdout] b2d3ee228d4fe1cec30e074334e3d0256d5ca1959af7c6c6aac8db7d33b0d836
[INFO] checking mystor/cargo-no_std-check against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmystor%2Fcargo-no_std-check" "/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/mystor/cargo-no_std-check 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/mystor/cargo-no_std-check
[INFO] finished tweaking git repo https://github.com/mystor/cargo-no_std-check
[INFO] tweaked toml for git repo https://github.com/mystor/cargo-no_std-check written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mystor/cargo-no_std-check 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] 65bbd045671cebfd5b3360f32008ef9576c78715c00b38006c4deac8822fc37e
[INFO] running `Command { std: "docker" "start" "-a" "65bbd045671cebfd5b3360f32008ef9576c78715c00b38006c4deac8822fc37e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65bbd045671cebfd5b3360f32008ef9576c78715c00b38006c4deac8822fc37e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65bbd045671cebfd5b3360f32008ef9576c78715c00b38006c4deac8822fc37e", kill_on_drop: false }`
[INFO] [stdout] 65bbd045671cebfd5b3360f32008ef9576c78715c00b38006c4deac8822fc37e
[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] 1cdf930b18bdc62f53d31d246c80ba91218b3ddecc9a0ea49aaf1c7633c3f393
[INFO] running `Command { std: "docker" "start" "-a" "1cdf930b18bdc62f53d31d246c80ba91218b3ddecc9a0ea49aaf1c7633c3f393", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking shell-escape v0.1.5
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking rustc_version v0.3.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking console v0.14.0
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking assert_cmd v1.0.2
[INFO] [stderr]     Checking cargo-no-std-check v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.61s
[INFO] running `Command { std: "docker" "inspect" "1cdf930b18bdc62f53d31d246c80ba91218b3ddecc9a0ea49aaf1c7633c3f393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cdf930b18bdc62f53d31d246c80ba91218b3ddecc9a0ea49aaf1c7633c3f393", kill_on_drop: false }`
[INFO] [stdout] 1cdf930b18bdc62f53d31d246c80ba91218b3ddecc9a0ea49aaf1c7633c3f393