[INFO] fetching crate markov_strings 0.1.5...
[INFO] testing markov_strings-0.1.5 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate markov_strings 0.1.5 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate markov_strings 0.1.5
[INFO] finished tweaking crates.io crate markov_strings 0.1.5
[INFO] tweaked toml for crates.io crate markov_strings 0.1.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate markov_strings 0.1.5 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 460f0c8272ff7197030b7c724e580fd43f730c4fb7576f9209a806ab08122359
[INFO] running `Command { std: "docker" "start" "-a" "460f0c8272ff7197030b7c724e580fd43f730c4fb7576f9209a806ab08122359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "460f0c8272ff7197030b7c724e580fd43f730c4fb7576f9209a806ab08122359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460f0c8272ff7197030b7c724e580fd43f730c4fb7576f9209a806ab08122359", kill_on_drop: false }`
[INFO] [stdout] 460f0c8272ff7197030b7c724e580fd43f730c4fb7576f9209a806ab08122359
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7b8cb59fc44c5ffc1e5167f9bd8859b85865297dad52056c1440bd7d4fb86fb4
[INFO] running `Command { std: "docker" "start" "-a" "7b8cb59fc44c5ffc1e5167f9bd8859b85865297dad52056c1440bd7d4fb86fb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling markov_strings v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.83s
[INFO] running `Command { std: "docker" "inspect" "7b8cb59fc44c5ffc1e5167f9bd8859b85865297dad52056c1440bd7d4fb86fb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b8cb59fc44c5ffc1e5167f9bd8859b85865297dad52056c1440bd7d4fb86fb4", kill_on_drop: false }`
[INFO] [stdout] 7b8cb59fc44c5ffc1e5167f9bd8859b85865297dad52056c1440bd7d4fb86fb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f4c8f79cea602cbe981cb3ee8d5b239b6cf9db7e6be1004043af3b40711433db
[INFO] running `Command { std: "docker" "start" "-a" "f4c8f79cea602cbe981cb3ee8d5b239b6cf9db7e6be1004043af3b40711433db", kill_on_drop: false }`
[INFO] [stderr]    Compiling markov_strings v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "f4c8f79cea602cbe981cb3ee8d5b239b6cf9db7e6be1004043af3b40711433db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c8f79cea602cbe981cb3ee8d5b239b6cf9db7e6be1004043af3b40711433db", kill_on_drop: false }`
[INFO] [stdout] f4c8f79cea602cbe981cb3ee8d5b239b6cf9db7e6be1004043af3b40711433db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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", kill_on_drop: false }`
[INFO] [stdout] efef2647e6e3756c83c9dd72d0a2f2a740a46d27e5e8f23e172651f84169937e
[INFO] running `Command { std: "docker" "start" "-a" "efef2647e6e3756c83c9dd72d0a2f2a740a46d27e5e8f23e172651f84169937e", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `syn v2.0.106`
[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 `syn v2.0.106`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.106`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "efef2647e6e3756c83c9dd72d0a2f2a740a46d27e5e8f23e172651f84169937e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efef2647e6e3756c83c9dd72d0a2f2a740a46d27e5e8f23e172651f84169937e", kill_on_drop: false }`
[INFO] [stdout] efef2647e6e3756c83c9dd72d0a2f2a740a46d27e5e8f23e172651f84169937e