[INFO] cloning repository https://github.com/aburd/bac_measurer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aburd/bac_measurer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faburd%2Fbac_measurer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faburd%2Fbac_measurer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c26d99dee345ecb6d1c0891fe27bb86567d437d5
[INFO] building aburd/bac_measurer against master#d59f06fc64844ec2073e5e888f7470989ef25ff9 for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faburd%2Fbac_measurer" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aburd/bac_measurer on toolchain d59f06fc64844ec2073e5e888f7470989ef25ff9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aburd/bac_measurer
[INFO] finished tweaking git repo https://github.com/aburd/bac_measurer
[INFO] tweaked toml for git repo https://github.com/aburd/bac_measurer written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/aburd/bac_measurer 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" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] building aburd/bac_measurer against try#fe8f664b41f030f307cfeb6cb8c3a1419292aeed for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faburd%2Fbac_measurer" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aburd/bac_measurer on toolchain fe8f664b41f030f307cfeb6cb8c3a1419292aeed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aburd/bac_measurer
[INFO] finished tweaking git repo https://github.com/aburd/bac_measurer
[INFO] tweaked toml for git repo https://github.com/aburd/bac_measurer written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/aburd/bac_measurer 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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "fetch" "--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] building aburd/bac_measurer against try#fe8f664b41f030f307cfeb6cb8c3a1419292aeed for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faburd%2Fbac_measurer" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aburd/bac_measurer on toolchain fe8f664b41f030f307cfeb6cb8c3a1419292aeed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aburd/bac_measurer
[INFO] finished tweaking git repo https://github.com/aburd/bac_measurer
[INFO] tweaked toml for git repo https://github.com/aburd/bac_measurer written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/aburd/bac_measurer 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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded measurements v0.10.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f454dfcd2b7f16dfa9917cad46a1cd09380876f9b8d9ff0b97f19c7875e42cc8
[INFO] running `Command { std: "docker" "start" "-a" "f454dfcd2b7f16dfa9917cad46a1cd09380876f9b8d9ff0b97f19c7875e42cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f454dfcd2b7f16dfa9917cad46a1cd09380876f9b8d9ff0b97f19c7875e42cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f454dfcd2b7f16dfa9917cad46a1cd09380876f9b8d9ff0b97f19c7875e42cc8", kill_on_drop: false }`
[INFO] [stdout] f454dfcd2b7f16dfa9917cad46a1cd09380876f9b8d9ff0b97f19c7875e42cc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33fc886b6d9e0ad221968df3f9c23f05cda4dccfaa45c6d7da5ec8c9a324d976
[INFO] running `Command { std: "docker" "start" "-a" "33fc886b6d9e0ad221968df3f9c23f05cda4dccfaa45c6d7da5ec8c9a324d976", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling measurements v0.10.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling bac-journal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `reader` is never read
[INFO] [stdout]   --> src/bac.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct User {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 22 |     reader: BufReader<File>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.94s
[INFO] running `Command { std: "docker" "inspect" "33fc886b6d9e0ad221968df3f9c23f05cda4dccfaa45c6d7da5ec8c9a324d976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33fc886b6d9e0ad221968df3f9c23f05cda4dccfaa45c6d7da5ec8c9a324d976", kill_on_drop: false }`
[INFO] [stdout] 33fc886b6d9e0ad221968df3f9c23f05cda4dccfaa45c6d7da5ec8c9a324d976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11a2f472d9dab0059c084131899282c7e678dacd2037439e91a68d81bd6e13f0
[INFO] running `Command { std: "docker" "start" "-a" "11a2f472d9dab0059c084131899282c7e678dacd2037439e91a68d81bd6e13f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stdout] warning: field `reader` is never read
[INFO] [stdout]   --> src/bac.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct User {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 22 |     reader: BufReader<File>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling bac-journal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `reader` is never read
[INFO] [stdout]   --> src/bac.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct User {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 22 |     reader: BufReader<File>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "11a2f472d9dab0059c084131899282c7e678dacd2037439e91a68d81bd6e13f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a2f472d9dab0059c084131899282c7e678dacd2037439e91a68d81bd6e13f0", kill_on_drop: false }`
[INFO] [stdout] 11a2f472d9dab0059c084131899282c7e678dacd2037439e91a68d81bd6e13f0