[INFO] fetching crate argmin-observer-slog 0.2.0...
[INFO] checking argmin-observer-slog-0.2.0 against master#e0e204f3e97ad5f79524b9c259dc38df606ed82c for pr-149218-1
[INFO] extracting crate argmin-observer-slog 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate argmin-observer-slog 0.2.0
[INFO] finished tweaking crates.io crate argmin-observer-slog 0.2.0
[INFO] tweaked toml for crates.io crate argmin-observer-slog 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate argmin-observer-slog 0.2.0 on toolchain e0e204f3e97ad5f79524b9c259dc38df606ed82c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate argmin-observer-slog 0.2.0 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" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_xoshiro v0.7.0
[INFO] [stderr]   Downloaded slog-async v2.8.0
[INFO] [stderr]   Downloaded slog-json v2.6.1
[INFO] [stderr]   Downloaded is-terminal v0.4.16
[INFO] [stderr]   Downloaded slog-term v2.9.1
[INFO] [stderr]   Downloaded slog v2.7.0
[INFO] [stderr]   Downloaded argmin-math v0.5.1
[INFO] [stderr]   Downloaded argmin v0.11.0
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3fd3f4699991b696f362a1b89ec679bb723db3a6684b27a474438d62cd34645
[INFO] running `Command { std: "docker" "start" "-a" "a3fd3f4699991b696f362a1b89ec679bb723db3a6684b27a474438d62cd34645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3fd3f4699991b696f362a1b89ec679bb723db3a6684b27a474438d62cd34645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3fd3f4699991b696f362a1b89ec679bb723db3a6684b27a474438d62cd34645", kill_on_drop: false }`
[INFO] [stdout] a3fd3f4699991b696f362a1b89ec679bb723db3a6684b27a474438d62cd34645
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8116edad56aea5aa23c3d747771fa78ef40617c12970c12d45aeb174b84e65b7
[INFO] running `Command { std: "docker" "start" "-a" "8116edad56aea5aa23c3d747771fa78ef40617c12970c12d45aeb174b84e65b7", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]    Compiling slog-async v2.8.0
[INFO] [stderr]     Checking rand_xoshiro v0.7.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking slog-term v2.9.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]     Checking argmin-math v0.5.1
[INFO] [stderr]     Checking argmin v0.11.0
[INFO] [stderr]     Checking argmin-observer-slog v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.44s
[INFO] running `Command { std: "docker" "inspect" "8116edad56aea5aa23c3d747771fa78ef40617c12970c12d45aeb174b84e65b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8116edad56aea5aa23c3d747771fa78ef40617c12970c12d45aeb174b84e65b7", kill_on_drop: false }`
[INFO] [stdout] 8116edad56aea5aa23c3d747771fa78ef40617c12970c12d45aeb174b84e65b7