[INFO] fetching crate hashmemo 0.2.1...
[INFO] testing hashmemo-0.2.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate hashmemo 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate hashmemo 0.2.1
[INFO] finished tweaking crates.io crate hashmemo 0.2.1
[INFO] tweaked toml for crates.io crate hashmemo 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hashmemo 0.2.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hashmemo 0.2.1 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] edda78c80afcf977d3e8a9cbb4a539db4e28c1e9ef2220396025399b5ce99dc1
[INFO] running `Command { std: "docker" "start" "-a" "edda78c80afcf977d3e8a9cbb4a539db4e28c1e9ef2220396025399b5ce99dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edda78c80afcf977d3e8a9cbb4a539db4e28c1e9ef2220396025399b5ce99dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edda78c80afcf977d3e8a9cbb4a539db4e28c1e9ef2220396025399b5ce99dc1", kill_on_drop: false }`
[INFO] [stdout] edda78c80afcf977d3e8a9cbb4a539db4e28c1e9ef2220396025399b5ce99dc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc59c8810b35ac78aac9f2a9f7c22cd30c67144961d08c0280a4fe2eebcdf61e
[INFO] running `Command { std: "docker" "start" "-a" "cc59c8810b35ac78aac9f2a9f7c22cd30c67144961d08c0280a4fe2eebcdf61e", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashmemo v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "cc59c8810b35ac78aac9f2a9f7c22cd30c67144961d08c0280a4fe2eebcdf61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc59c8810b35ac78aac9f2a9f7c22cd30c67144961d08c0280a4fe2eebcdf61e", kill_on_drop: false }`
[INFO] [stdout] cc59c8810b35ac78aac9f2a9f7c22cd30c67144961d08c0280a4fe2eebcdf61e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da9e1d4f127f382d9f253f40e119ec67520aea63c3228a5f748092783de36d2f
[INFO] running `Command { std: "docker" "start" "-a" "da9e1d4f127f382d9f253f40e119ec67520aea63c3228a5f748092783de36d2f", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `cast v0.3.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack package `cast v0.3.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cast-0.3.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "da9e1d4f127f382d9f253f40e119ec67520aea63c3228a5f748092783de36d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da9e1d4f127f382d9f253f40e119ec67520aea63c3228a5f748092783de36d2f", kill_on_drop: false }`
[INFO] [stdout] da9e1d4f127f382d9f253f40e119ec67520aea63c3228a5f748092783de36d2f