[INFO] fetching crate kern 1.7.1...
[INFO] checking kern-1.7.1 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate kern 1.7.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate kern 1.7.1 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kern 1.7.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate kern 1.7.1
[INFO] tweaked toml for crates.io crate kern 1.7.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate kern 1.7.1 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dunce v1.0.4
[INFO] [stderr]   Downloaded zeroize v1.7.0
[INFO] [stderr]   Downloaded aws-lc-rs v1.6.2
[INFO] [stderr]   Downloaded rustls-pki-types v1.3.1
[INFO] [stderr]   Downloaded clang-sys v1.7.0
[INFO] [stderr]   Downloaded prettyplease v0.2.16
[INFO] [stderr]   Downloaded rustls-pemfile v2.1.1
[INFO] [stderr]   Downloaded rustls-webpki v0.102.2
[INFO] [stderr]   Downloaded rustls v0.23.1
[INFO] [stderr]   Downloaded aws-lc-sys v0.13.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0db82a6fcf0289a3682d52851908b7ef296f49b25e2ccb1700a290a6d6778f20
[INFO] running `Command { std: "docker" "start" "-a" "0db82a6fcf0289a3682d52851908b7ef296f49b25e2ccb1700a290a6d6778f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0db82a6fcf0289a3682d52851908b7ef296f49b25e2ccb1700a290a6d6778f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0db82a6fcf0289a3682d52851908b7ef296f49b25e2ccb1700a290a6d6778f20", kill_on_drop: false }`
[INFO] [stdout] 0db82a6fcf0289a3682d52851908b7ef296f49b25e2ccb1700a290a6d6778f20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 780b0b3b04eb30b6310f5cf108ae848db0542de4e2bc27def8da604e8bb698bc
[INFO] running `Command { std: "docker" "start" "-a" "780b0b3b04eb30b6310f5cf108ae848db0542de4e2bc27def8da604e8bb698bc", kill_on_drop: false }`
[INFO] [stderr]     Checking kern v1.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "780b0b3b04eb30b6310f5cf108ae848db0542de4e2bc27def8da604e8bb698bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "780b0b3b04eb30b6310f5cf108ae848db0542de4e2bc27def8da604e8bb698bc", kill_on_drop: false }`
[INFO] [stdout] 780b0b3b04eb30b6310f5cf108ae848db0542de4e2bc27def8da604e8bb698bc
[INFO] checking kern-1.7.1 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate kern 1.7.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate kern 1.7.1 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kern 1.7.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate kern 1.7.1
[INFO] tweaked toml for crates.io crate kern 1.7.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate kern 1.7.1 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d3819fb5f9ae8a5e923af54ecbaadc57d3cae1c4b30c92873f20a862ed2de85
[INFO] running `Command { std: "docker" "start" "-a" "9d3819fb5f9ae8a5e923af54ecbaadc57d3cae1c4b30c92873f20a862ed2de85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d3819fb5f9ae8a5e923af54ecbaadc57d3cae1c4b30c92873f20a862ed2de85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d3819fb5f9ae8a5e923af54ecbaadc57d3cae1c4b30c92873f20a862ed2de85", kill_on_drop: false }`
[INFO] [stdout] 9d3819fb5f9ae8a5e923af54ecbaadc57d3cae1c4b30c92873f20a862ed2de85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 478e37ebd8937ab09e67f3d5c22f67df92d64219750a52cced8bb2fe59d7434f
[INFO] running `Command { std: "docker" "start" "-a" "478e37ebd8937ab09e67f3d5c22f67df92d64219750a52cced8bb2fe59d7434f", kill_on_drop: false }`
[INFO] [stderr]     Checking kern v1.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "478e37ebd8937ab09e67f3d5c22f67df92d64219750a52cced8bb2fe59d7434f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "478e37ebd8937ab09e67f3d5c22f67df92d64219750a52cced8bb2fe59d7434f", kill_on_drop: false }`
[INFO] [stdout] 478e37ebd8937ab09e67f3d5c22f67df92d64219750a52cced8bb2fe59d7434f