[INFO] fetching crate file-mode 0.1.2...
[INFO] testing file-mode-0.1.2 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate file-mode 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate file-mode 0.1.2
[INFO] finished tweaking crates.io crate file-mode 0.1.2
[INFO] tweaked toml for crates.io crate file-mode 0.1.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate file-mode 0.1.2 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 file-mode 0.1.2 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] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75c03bcd6c2cdb82fb68cafd6dcc06b4a57732bda8e0cfb49a5bb96a71bfdf1a
[INFO] running `Command { std: "docker" "start" "-a" "75c03bcd6c2cdb82fb68cafd6dcc06b4a57732bda8e0cfb49a5bb96a71bfdf1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75c03bcd6c2cdb82fb68cafd6dcc06b4a57732bda8e0cfb49a5bb96a71bfdf1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75c03bcd6c2cdb82fb68cafd6dcc06b4a57732bda8e0cfb49a5bb96a71bfdf1a", kill_on_drop: false }`
[INFO] [stdout] 75c03bcd6c2cdb82fb68cafd6dcc06b4a57732bda8e0cfb49a5bb96a71bfdf1a
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a2554798fba875fb4698aaf35f7ecdfa15eae7a59b530a9a3d48eb4d5d27004
[INFO] running `Command { std: "docker" "start" "-a" "0a2554798fba875fb4698aaf35f7ecdfa15eae7a59b530a9a3d48eb4d5d27004", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling file-mode v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "0a2554798fba875fb4698aaf35f7ecdfa15eae7a59b530a9a3d48eb4d5d27004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a2554798fba875fb4698aaf35f7ecdfa15eae7a59b530a9a3d48eb4d5d27004", kill_on_drop: false }`
[INFO] [stdout] 0a2554798fba875fb4698aaf35f7ecdfa15eae7a59b530a9a3d48eb4d5d27004
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4e9c1177ebaf0d1fc4601c080e8090c6a9db5401a8d5adf662efc08b254f045
[INFO] running `Command { std: "docker" "start" "-a" "b4e9c1177ebaf0d1fc4601c080e8090c6a9db5401a8d5adf662efc08b254f045", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `instant v0.1.9`
[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 `instant v0.1.9`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/instant-0.1.9`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "b4e9c1177ebaf0d1fc4601c080e8090c6a9db5401a8d5adf662efc08b254f045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e9c1177ebaf0d1fc4601c080e8090c6a9db5401a8d5adf662efc08b254f045", kill_on_drop: false }`
[INFO] [stdout] b4e9c1177ebaf0d1fc4601c080e8090c6a9db5401a8d5adf662efc08b254f045