[INFO] fetching crate prefix_string 1.0.0...
[INFO] checking prefix_string-1.0.0 against try#38c2997544af84fe301d600d6896397738163002 for pr-154205-1
[INFO] extracting crate prefix_string 1.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate prefix_string 1.0.0
[INFO] finished tweaking crates.io crate prefix_string 1.0.0
[INFO] tweaked toml for crates.io crate prefix_string 1.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prefix_string 1.0.0 on toolchain 38c2997544af84fe301d600d6896397738163002
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate prefix_string 1.0.0 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" "+38c2997544af84fe301d600d6896397738163002" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36ef64bf45b4e3b090f86df37216c13977f4aa9d4cf30e21441232e9430d17cb
[INFO] running `Command { std: "docker" "start" "-a" "36ef64bf45b4e3b090f86df37216c13977f4aa9d4cf30e21441232e9430d17cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36ef64bf45b4e3b090f86df37216c13977f4aa9d4cf30e21441232e9430d17cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ef64bf45b4e3b090f86df37216c13977f4aa9d4cf30e21441232e9430d17cb", kill_on_drop: false }`
[INFO] [stdout] 36ef64bf45b4e3b090f86df37216c13977f4aa9d4cf30e21441232e9430d17cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+38c2997544af84fe301d600d6896397738163002" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41a6c0a7d8ad11fa1b24a6a77c5f8c86571f4e54c6caa3df66f90aa0c7f1077c
[INFO] running `Command { std: "docker" "start" "-a" "41a6c0a7d8ad11fa1b24a6a77c5f8c86571f4e54c6caa3df66f90aa0c7f1077c", kill_on_drop: false }`
[INFO] [stderr]     Checking prefix_string v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] [FMTARGS] {"crate":"prefix_string","loc":"src/main.rs:4:13","p":1,"ph":1,"wa":0,"pa":0,"a":1,"pos":1,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16}
[INFO] [stderr] [FMTARGS] {"crate":"prefix_string","loc":"src/main.rs:4:13","p":1,"ph":1,"wa":0,"pa":0,"a":1,"pos":1,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16}
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "41a6c0a7d8ad11fa1b24a6a77c5f8c86571f4e54c6caa3df66f90aa0c7f1077c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41a6c0a7d8ad11fa1b24a6a77c5f8c86571f4e54c6caa3df66f90aa0c7f1077c", kill_on_drop: false }`
[INFO] [stdout] 41a6c0a7d8ad11fa1b24a6a77c5f8c86571f4e54c6caa3df66f90aa0c7f1077c