[INFO] fetching crate see 0.0.7...
[INFO] checking see-0.0.7 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate see 0.0.7 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate see 0.0.7 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate see 0.0.7
[INFO] finished tweaking crates.io crate see 0.0.7
[INFO] tweaked toml for crates.io crate see 0.0.7 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate see 0.0.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b80de96bd3d01022965f369e8a4513c4e9b3eb8c14500c9eff4de94d7d70cd1b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b80de96bd3d01022965f369e8a4513c4e9b3eb8c14500c9eff4de94d7d70cd1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b80de96bd3d01022965f369e8a4513c4e9b3eb8c14500c9eff4de94d7d70cd1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b80de96bd3d01022965f369e8a4513c4e9b3eb8c14500c9eff4de94d7d70cd1b", kill_on_drop: false }`
[INFO] [stdout] b80de96bd3d01022965f369e8a4513c4e9b3eb8c14500c9eff4de94d7d70cd1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f768c0f4c78e8d2131c30a7918a813697b09b987f16e85dbc715b8717d7e347
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4f768c0f4c78e8d2131c30a7918a813697b09b987f16e85dbc715b8717d7e347", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling standback v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking ring v0.16.19
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking ct-logs v0.8.0
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking rustls-native-certs v0.5.0
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling pin-project-internal v1.0.4
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking pin-project v1.0.4
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking tokio-util v0.6.3
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking async-compression v0.3.7
[INFO] [stderr]     Checking h2 v0.3.0
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]     Checking see v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "4f768c0f4c78e8d2131c30a7918a813697b09b987f16e85dbc715b8717d7e347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f768c0f4c78e8d2131c30a7918a813697b09b987f16e85dbc715b8717d7e347", kill_on_drop: false }`
[INFO] [stdout] 4f768c0f4c78e8d2131c30a7918a813697b09b987f16e85dbc715b8717d7e347