[INFO] fetching crate umberwm 0.0.31...
[INFO] checking umberwm-0.0.31 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate umberwm 0.0.31 into /workspace/builds/worker-66/source
[INFO] validating manifest of crates.io crate umberwm 0.0.31 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate umberwm 0.0.31
[INFO] finished tweaking crates.io crate umberwm 0.0.31
[INFO] tweaked toml for crates.io crate umberwm 0.0.31 written to /workspace/builds/worker-66/source/Cargo.toml
[INFO] crate crates.io crate umberwm 0.0.31 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.2.9
[INFO] [stderr]   Downloaded redox_users v0.4.0
[INFO] [stderr]   Downloaded x11 v2.18.2
[INFO] [stderr]   Downloaded xcb v0.9.0
[INFO] [stderr]   Downloaded darling_core v0.13.0
[INFO] [stderr]   Downloaded darling v0.13.0
[INFO] [stderr]   Downloaded dirs-sys v0.3.6
[INFO] [stderr]   Downloaded ron v0.6.4
[INFO] [stderr]   Downloaded dirs v3.0.2
[INFO] [stderr]   Downloaded ident_case v1.0.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.24
[INFO] [stderr]   Downloaded darling_macro v0.13.0
[INFO] [stderr]   Downloaded anyhow v1.0.41
[INFO] [stderr]   Downloaded strsim v0.10.0
[INFO] [stderr]   Downloaded rustversion v1.0.5
[INFO] [stderr]   Downloaded serde_with_macros v1.4.2
[INFO] [stderr]   Downloaded serde_with v1.9.4
[INFO] [stderr]   Downloaded thiserror v1.0.24
[INFO] [stderr]   Downloaded libc v0.2.86
[INFO] [stderr]   Downloaded xmodmap-pke-umberwm v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec01cec84864aa1353934716e7fa5e78f89e2d88bf59c7f7da1e7c41abf4f28a
[INFO] running `Command { std: "docker" "start" "-a" "ec01cec84864aa1353934716e7fa5e78f89e2d88bf59c7f7da1e7c41abf4f28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec01cec84864aa1353934716e7fa5e78f89e2d88bf59c7f7da1e7c41abf4f28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec01cec84864aa1353934716e7fa5e78f89e2d88bf59c7f7da1e7c41abf4f28a", kill_on_drop: false }`
[INFO] [stdout] ec01cec84864aa1353934716e7fa5e78f89e2d88bf59c7f7da1e7c41abf4f28a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80bde71b2ad27f022a2f2b64326f126ad5710add08e946e48e19ab11679325f2
[INFO] running `Command { std: "docker" "start" "-a" "80bde71b2ad27f022a2f2b64326f126ad5710add08e946e48e19ab11679325f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]    Compiling xmodmap-pke-umberwm v0.0.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling serde_with_macros v1.4.2
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking ron v0.6.4
[INFO] [stderr]     Checking serde_with v1.9.4
[INFO] [stderr]     Checking umberwm v0.0.31 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.21s
[INFO] running `Command { std: "docker" "inspect" "80bde71b2ad27f022a2f2b64326f126ad5710add08e946e48e19ab11679325f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80bde71b2ad27f022a2f2b64326f126ad5710add08e946e48e19ab11679325f2", kill_on_drop: false }`
[INFO] [stdout] 80bde71b2ad27f022a2f2b64326f126ad5710add08e946e48e19ab11679325f2