[INFO] fetching crate roost-lang 2.0.4...
[INFO] checking roost-lang-2.0.4 against try#2c4819a380dbddb1f2a0f4405a49fb6ed90983ae for pr-152996
[INFO] extracting crate roost-lang 2.0.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate roost-lang 2.0.4
[INFO] finished tweaking crates.io crate roost-lang 2.0.4
[INFO] tweaked toml for crates.io crate roost-lang 2.0.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate roost-lang 2.0.4 on toolchain 2c4819a380dbddb1f2a0f4405a49fb6ed90983ae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking roost-lang-2.0.4 against try#2c4819a380dbddb1f2a0f4405a49fb6ed90983ae for pr-152996
[INFO] extracting crate roost-lang 2.0.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate roost-lang 2.0.4
[INFO] finished tweaking crates.io crate roost-lang 2.0.4
[INFO] tweaked toml for crates.io crate roost-lang 2.0.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate roost-lang 2.0.4 on toolchain 2c4819a380dbddb1f2a0f4405a49fb6ed90983ae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "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 66 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07b9b159f9038e3137959db9fa1f223455bb68e2ac93a696715f176f9ae8ab4f
[INFO] running `Command { std: "docker" "start" "-a" "07b9b159f9038e3137959db9fa1f223455bb68e2ac93a696715f176f9ae8ab4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07b9b159f9038e3137959db9fa1f223455bb68e2ac93a696715f176f9ae8ab4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b9b159f9038e3137959db9fa1f223455bb68e2ac93a696715f176f9ae8ab4f", kill_on_drop: false }`
[INFO] [stdout] 07b9b159f9038e3137959db9fa1f223455bb68e2ac93a696715f176f9ae8ab4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5537affac29ac5f5c0031af9c30536833b75417bbc126ca6385204b0f29af947
[INFO] running `Command { std: "docker" "start" "-a" "5537affac29ac5f5c0031af9c30536833b75417bbc126ca6385204b0f29af947", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rust_decimal v1.40.0
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking roost-lang v2.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `Command { std: "docker" "inspect" "5537affac29ac5f5c0031af9c30536833b75417bbc126ca6385204b0f29af947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5537affac29ac5f5c0031af9c30536833b75417bbc126ca6385204b0f29af947", kill_on_drop: false }`
[INFO] [stdout] 5537affac29ac5f5c0031af9c30536833b75417bbc126ca6385204b0f29af947