[INFO] fetching crate stak-compiler 0.10.29...
[INFO] checking stak-compiler-0.10.29 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate stak-compiler 0.10.29 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate stak-compiler 0.10.29
[INFO] finished tweaking crates.io crate stak-compiler 0.10.29
[INFO] tweaked toml for crates.io crate stak-compiler 0.10.29 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stak-compiler 0.10.29 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stak-compiler 0.10.29 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stak-process-context v0.10.29
[INFO] [stderr]   Downloaded stak-file v0.10.29
[INFO] [stderr]   Downloaded noop-executor v0.1.0
[INFO] [stderr]   Downloaded stak-configuration v0.10.29
[INFO] [stderr]   Downloaded stak-native v0.10.29
[INFO] [stderr]   Downloaded stak-r7rs v0.10.29
[INFO] [stderr]   Downloaded stak-util v0.10.29
[INFO] [stderr]   Downloaded stak-time v0.10.29
[INFO] [stderr]   Downloaded stak-vm v0.10.29
[INFO] [stderr]   Downloaded stak-device v0.10.29
[INFO] [stderr]   Downloaded stak-inexact v0.10.29
[INFO] [stderr]   Downloaded cfg-elif v0.6.3
[INFO] [stderr]   Downloaded winter-maybe-async v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19c4624794d35cfca19b7b0b55159c805d51807783f9522353c6b112cee21534
[INFO] running `Command { std: "docker" "start" "-a" "19c4624794d35cfca19b7b0b55159c805d51807783f9522353c6b112cee21534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19c4624794d35cfca19b7b0b55159c805d51807783f9522353c6b112cee21534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19c4624794d35cfca19b7b0b55159c805d51807783f9522353c6b112cee21534", kill_on_drop: false }`
[INFO] [stdout] 19c4624794d35cfca19b7b0b55159c805d51807783f9522353c6b112cee21534
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7023ead351c62f7ecb9bef4f994bc93102e1bae60cff8bcfac21e656f99380d
[INFO] running `Command { std: "docker" "start" "-a" "c7023ead351c62f7ecb9bef4f994bc93102e1bae60cff8bcfac21e656f99380d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]     Checking noop-executor v0.1.0
[INFO] [stderr]     Checking cfg-elif v0.6.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling stak-compiler v0.10.29 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking stak-configuration v0.10.29
[INFO] [stderr]     Checking stak-util v0.10.29
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling winter-maybe-async v0.13.0
[INFO] [stderr]     Checking stak-vm v0.10.29
[INFO] [stderr]     Checking stak-inexact v0.10.29
[INFO] [stderr]     Checking stak-time v0.10.29
[INFO] [stderr]     Checking stak-process-context v0.10.29
[INFO] [stderr]     Checking stak-file v0.10.29
[INFO] [stderr]     Checking stak-device v0.10.29
[INFO] [stderr]     Checking stak-native v0.10.29
[INFO] [stderr]     Checking stak-r7rs v0.10.29
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.57s
[INFO] running `Command { std: "docker" "inspect" "c7023ead351c62f7ecb9bef4f994bc93102e1bae60cff8bcfac21e656f99380d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7023ead351c62f7ecb9bef4f994bc93102e1bae60cff8bcfac21e656f99380d", kill_on_drop: false }`
[INFO] [stdout] c7023ead351c62f7ecb9bef4f994bc93102e1bae60cff8bcfac21e656f99380d