[INFO] fetching crate arc-string-interner 0.3.0-alpha2...
[INFO] checking arc-string-interner-0.3.0-alpha2 against try#b2fb67b8b6007ced9ad3f3b752a6fec899e7859c for pr-138915
[INFO] extracting crate arc-string-interner 0.3.0-alpha2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate arc-string-interner 0.3.0-alpha2 on toolchain b2fb67b8b6007ced9ad3f3b752a6fec899e7859c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arc-string-interner 0.3.0-alpha2
[INFO] finished tweaking crates.io crate arc-string-interner 0.3.0-alpha2
[INFO] tweaked toml for crates.io crate arc-string-interner 0.3.0-alpha2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "generate-lockfile" "--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]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding parking_lot v0.11.2 (available: v0.12.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded init_with v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e457b79c45f3162478fe871fb417058ee2da85ae692a7d343b371b67b01db9e6
[INFO] running `Command { std: "docker" "start" "-a" "e457b79c45f3162478fe871fb417058ee2da85ae692a7d343b371b67b01db9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e457b79c45f3162478fe871fb417058ee2da85ae692a7d343b371b67b01db9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e457b79c45f3162478fe871fb417058ee2da85ae692a7d343b371b67b01db9e6", kill_on_drop: false }`
[INFO] [stdout] e457b79c45f3162478fe871fb417058ee2da85ae692a7d343b371b67b01db9e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2c470a43e1bd44c670e0be7f9d4e3af8c2acbcee967060aeac37cb718d37e28
[INFO] running `Command { std: "docker" "start" "-a" "f2c470a43e1bd44c670e0be7f9d4e3af8c2acbcee967060aeac37cb718d37e28", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]     Checking init_with v1.1.0
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking arc-string-interner v0.3.0-alpha2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.75s
[INFO] running `Command { std: "docker" "inspect" "f2c470a43e1bd44c670e0be7f9d4e3af8c2acbcee967060aeac37cb718d37e28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2c470a43e1bd44c670e0be7f9d4e3af8c2acbcee967060aeac37cb718d37e28", kill_on_drop: false }`
[INFO] [stdout] f2c470a43e1bd44c670e0be7f9d4e3af8c2acbcee967060aeac37cb718d37e28