[INFO] cloning repository https://github.com/smallstepman/rs-green-threads-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/smallstepman/rs-green-threads-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmallstepman%2Frs-green-threads-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmallstepman%2Frs-green-threads-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f21fde78f37fff04d931cd46c3668885c4985b57
[INFO] checking smallstepman/rs-green-threads-sandbox against master#5431404b87967c69438ea1e698edbe96505f0798 for pr-119849
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmallstepman%2Frs-green-threads-sandbox" "/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/smallstepman/rs-green-threads-sandbox on toolchain 5431404b87967c69438ea1e698edbe96505f0798
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5431404b87967c69438ea1e698edbe96505f0798" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/smallstepman/rs-green-threads-sandbox
[INFO] finished tweaking git repo https://github.com/smallstepman/rs-green-threads-sandbox
[INFO] tweaked toml for git repo https://github.com/smallstepman/rs-green-threads-sandbox written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/smallstepman/rs-green-threads-sandbox 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" "+5431404b87967c69438ea1e698edbe96505f0798" "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] checking smallstepman/rs-green-threads-sandbox against try#21bc403d557a2516df70ea80fb19b94177beede5 for pr-119849
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmallstepman%2Frs-green-threads-sandbox" "/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/smallstepman/rs-green-threads-sandbox on toolchain 21bc403d557a2516df70ea80fb19b94177beede5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/smallstepman/rs-green-threads-sandbox
[INFO] finished tweaking git repo https://github.com/smallstepman/rs-green-threads-sandbox
[INFO] tweaked toml for git repo https://github.com/smallstepman/rs-green-threads-sandbox written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/smallstepman/rs-green-threads-sandbox 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" "+21bc403d557a2516df70ea80fb19b94177beede5" "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-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" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65e4172bd179e164fa963ce3cf68b54b8d5c87e6d01f76c7b392255a26a90bf8
[INFO] running `Command { std: "docker" "start" "-a" "65e4172bd179e164fa963ce3cf68b54b8d5c87e6d01f76c7b392255a26a90bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65e4172bd179e164fa963ce3cf68b54b8d5c87e6d01f76c7b392255a26a90bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65e4172bd179e164fa963ce3cf68b54b8d5c87e6d01f76c7b392255a26a90bf8", kill_on_drop: false }`
[INFO] [stdout] 65e4172bd179e164fa963ce3cf68b54b8d5c87e6d01f76c7b392255a26a90bf8
[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" "+21bc403d557a2516df70ea80fb19b94177beede5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4be8e20e4bdbd6e4202c013f574c18627719e39a450639688b886889f266e72
[INFO] running `Command { std: "docker" "start" "-a" "a4be8e20e4bdbd6e4202c013f574c18627719e39a450639688b886889f266e72", kill_on_drop: false }`
[INFO] [stderr]     Checking epoll v0.1.0 (/opt/rustwide/workdir/04-epoll)
[INFO] [stderr]     Checking green-threads-sandbox v0.1.0 (/opt/rustwide/workdir/01-asm-execution-context)
[INFO] [stderr]     Checking concurrency-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking hello-green-threads v0.1.0 (/opt/rustwide/workdir/02-asm-green-threads)
[INFO] [stderr]     Checking syscalls v0.1.0 (/opt/rustwide/workdir/03-syscalls)
[INFO] [stdout] warning: named argument `delay` is not used by name
[INFO] [stdout]   --> 04-epoll/src/main.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             "GET /{delay}/{}/url/http://www.google.com HTTP/1.1\r\n\
[INFO] [stdout]    |                           -- this formatting argument uses named argument `delay` by position
[INFO] [stdout] ...
[INFO] [stdout] 52 |             delay = delay
[INFO] [stdout]    |             ^^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 48 |             "GET /{delay}/{delay}/url/http://www.google.com HTTP/1.1\r\n\
[INFO] [stdout]    |                            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `delay` is not used by name
[INFO] [stdout]   --> 04-epoll/src/main.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             "GET /{delay}/{}/url/http://www.google.com HTTP/1.1\r\n\
[INFO] [stdout]    |                           -- this formatting argument uses named argument `delay` by position
[INFO] [stdout] ...
[INFO] [stdout] 52 |             delay = delay
[INFO] [stdout]    |             ^^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 48 |             "GET /{delay}/{delay}/url/http://www.google.com HTTP/1.1\r\n\
[INFO] [stdout]    |                            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> 02-asm-green-threads/src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Thread {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 21 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> 02-asm-green-threads/src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Thread {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 21 |     id: usize,
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "a4be8e20e4bdbd6e4202c013f574c18627719e39a450639688b886889f266e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4be8e20e4bdbd6e4202c013f574c18627719e39a450639688b886889f266e72", kill_on_drop: false }`
[INFO] [stdout] a4be8e20e4bdbd6e4202c013f574c18627719e39a450639688b886889f266e72