[INFO] cloning repository https://github.com/dongzi121/hw5
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dongzi121/hw5" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdongzi121%2Fhw5", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdongzi121%2Fhw5'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98eaf174a192c3c21cff56a3ca32bed323286cf8
[INFO] checking dongzi121/hw5 against master#74c3f5a146860c94ff4d179fc3bfa34f879adf41 for pr-120248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdongzi121%2Fhw5" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  53% (1149/2157)
Updating files:  54% (1165/2157)
Updating files:  55% (1187/2157)
Updating files:  56% (1208/2157)
Updating files:  57% (1230/2157)
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Updating files:  64% (1381/2157)
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Updating files:  89% (1920/2157)
Updating files:  90% (1942/2157)
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Updating files:  98% (2114/2157)
Updating files:  99% (2136/2157)
Updating files: 100% (2157/2157)
Updating files: 100% (2157/2157), done.
[INFO] validating manifest of git repo https://github.com/dongzi121/hw5 on toolchain 74c3f5a146860c94ff4d179fc3bfa34f879adf41
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+74c3f5a146860c94ff4d179fc3bfa34f879adf41" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/dongzi121/hw5
[INFO] finished tweaking git repo https://github.com/dongzi121/hw5
[INFO] tweaked toml for git repo https://github.com/dongzi121/hw5 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dongzi121/hw5 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" "+74c3f5a146860c94ff4d179fc3bfa34f879adf41" "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 dongzi121/hw5 against try#13cae6066db2d5e6c9bb508caceec8d34ca49980 for pr-120248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdongzi121%2Fhw5" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  53% (1149/2157)
Updating files:  54% (1165/2157)
Updating files:  55% (1187/2157)
Updating files:  56% (1208/2157)
Updating files:  57% (1230/2157)
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Updating files:  88% (1899/2157)
Updating files:  89% (1920/2157)
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Updating files:  94% (2028/2157)
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Updating files:  97% (2093/2157)
Updating files:  98% (2114/2157)
Updating files:  99% (2136/2157)
Updating files: 100% (2157/2157)
Updating files: 100% (2157/2157), done.
[INFO] validating manifest of git repo https://github.com/dongzi121/hw5 on toolchain 13cae6066db2d5e6c9bb508caceec8d34ca49980
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/dongzi121/hw5
[INFO] finished tweaking git repo https://github.com/dongzi121/hw5
[INFO] tweaked toml for git repo https://github.com/dongzi121/hw5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dongzi121/hw5 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" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "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] checking dongzi121/hw5 against try#13cae6066db2d5e6c9bb508caceec8d34ca49980 for pr-120248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdongzi121%2Fhw5" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  53% (1149/2157)
Updating files:  54% (1165/2157)
Updating files:  55% (1187/2157)
Updating files:  56% (1208/2157)
Updating files:  57% (1230/2157)
Updating files:  58% (1252/2157)
Updating files:  59% (1273/2157)
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Updating files:  61% (1316/2157)
Updating files:  62% (1338/2157)
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Updating files:  73% (1575/2157)
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Updating files:  84% (1812/2157)
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Updating files:  86% (1856/2157)
Updating files:  87% (1877/2157)
Updating files:  88% (1899/2157)
Updating files:  89% (1920/2157)
Updating files:  90% (1942/2157)
Updating files:  91% (1963/2157)
Updating files:  92% (1985/2157)
Updating files:  93% (2007/2157)
Updating files:  94% (2028/2157)
Updating files:  95% (2050/2157)
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Updating files:  97% (2093/2157)
Updating files:  98% (2114/2157)
Updating files:  99% (2136/2157)
Updating files: 100% (2157/2157)
Updating files: 100% (2157/2157), done.
[INFO] validating manifest of git repo https://github.com/dongzi121/hw5 on toolchain 13cae6066db2d5e6c9bb508caceec8d34ca49980
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/dongzi121/hw5
[INFO] finished tweaking git repo https://github.com/dongzi121/hw5
[INFO] tweaked toml for git repo https://github.com/dongzi121/hw5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dongzi121/hw5 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" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "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
[INFO] checking dongzi121/hw5 against try#13cae6066db2d5e6c9bb508caceec8d34ca49980 for pr-120248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdongzi121%2Fhw5" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  53% (1149/2157)
Updating files:  54% (1165/2157)
Updating files:  55% (1187/2157)
Updating files:  56% (1208/2157)
Updating files:  57% (1230/2157)
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Updating files:  62% (1338/2157)
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Updating files:  82% (1769/2157)
Updating files:  83% (1791/2157)
Updating files:  84% (1812/2157)
Updating files:  85% (1834/2157)
Updating files:  86% (1856/2157)
Updating files:  87% (1877/2157)
Updating files:  88% (1899/2157)
Updating files:  89% (1920/2157)
Updating files:  90% (1942/2157)
Updating files:  91% (1963/2157)
Updating files:  92% (1985/2157)
Updating files:  93% (2007/2157)
Updating files:  94% (2028/2157)
Updating files:  95% (2050/2157)
Updating files:  96% (2071/2157)
Updating files:  97% (2093/2157)
Updating files:  98% (2114/2157)
Updating files:  99% (2136/2157)
Updating files: 100% (2157/2157)
Updating files: 100% (2157/2157), done.
[INFO] validating manifest of git repo https://github.com/dongzi121/hw5 on toolchain 13cae6066db2d5e6c9bb508caceec8d34ca49980
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/dongzi121/hw5
[INFO] finished tweaking git repo https://github.com/dongzi121/hw5
[INFO] tweaked toml for git repo https://github.com/dongzi121/hw5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dongzi121/hw5 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" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "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
[INFO] checking dongzi121/hw5 against try#13cae6066db2d5e6c9bb508caceec8d34ca49980 for pr-120248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdongzi121%2Fhw5" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  53% (1149/2157)
Updating files:  54% (1165/2157)
Updating files:  55% (1187/2157)
Updating files:  56% (1208/2157)
Updating files:  57% (1230/2157)
Updating files:  58% (1252/2157)
Updating files:  59% (1273/2157)
Updating files:  60% (1295/2157)
Updating files:  61% (1316/2157)
Updating files:  62% (1338/2157)
Updating files:  63% (1359/2157)
Updating files:  63% (1360/2157)
Updating files:  64% (1381/2157)
Updating files:  65% (1403/2157)
Updating files:  66% (1424/2157)
Updating files:  67% (1446/2157)
Updating files:  68% (1467/2157)
Updating files:  68% (1478/2157)
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Updating files:  70% (1510/2157)
Updating files:  71% (1532/2157)
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Updating files:  73% (1575/2157)
Updating files:  74% (1597/2157)
Updating files:  75% (1618/2157)
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Updating files:  81% (1748/2157)
Updating files:  82% (1769/2157)
Updating files:  83% (1791/2157)
Updating files:  84% (1812/2157)
Updating files:  85% (1834/2157)
Updating files:  86% (1856/2157)
Updating files:  87% (1877/2157)
Updating files:  88% (1899/2157)
Updating files:  89% (1920/2157)
Updating files:  90% (1942/2157)
Updating files:  91% (1963/2157)
Updating files:  92% (1985/2157)
Updating files:  93% (2007/2157)
Updating files:  94% (2028/2157)
Updating files:  95% (2050/2157)
Updating files:  96% (2071/2157)
Updating files:  97% (2093/2157)
Updating files:  98% (2114/2157)
Updating files:  99% (2136/2157)
Updating files: 100% (2157/2157)
Updating files: 100% (2157/2157), done.
[INFO] validating manifest of git repo https://github.com/dongzi121/hw5 on toolchain 13cae6066db2d5e6c9bb508caceec8d34ca49980
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/dongzi121/hw5
[INFO] finished tweaking git repo https://github.com/dongzi121/hw5
[INFO] tweaked toml for git repo https://github.com/dongzi121/hw5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dongzi121/hw5 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" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "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
[INFO] checking dongzi121/hw5 against try#13cae6066db2d5e6c9bb508caceec8d34ca49980 for pr-120248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdongzi121%2Fhw5" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  53% (1149/2157)
Updating files:  54% (1165/2157)
Updating files:  55% (1187/2157)
Updating files:  56% (1208/2157)
Updating files:  57% (1230/2157)
Updating files:  58% (1252/2157)
Updating files:  59% (1273/2157)
Updating files:  60% (1295/2157)
Updating files:  61% (1316/2157)
Updating files:  62% (1338/2157)
Updating files:  63% (1359/2157)
Updating files:  63% (1362/2157)
Updating files:  64% (1381/2157)
Updating files:  65% (1403/2157)
Updating files:  66% (1424/2157)
Updating files:  67% (1446/2157)
Updating files:  68% (1467/2157)
Updating files:  68% (1483/2157)
Updating files:  69% (1489/2157)
Updating files:  70% (1510/2157)
Updating files:  71% (1532/2157)
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Updating files:  73% (1575/2157)
Updating files:  74% (1597/2157)
Updating files:  75% (1618/2157)
Updating files:  76% (1640/2157)
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Updating files:  77% (1661/2157)
Updating files:  78% (1683/2157)
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[INFO] validating manifest of git repo https://github.com/dongzi121/hw5 on toolchain 13cae6066db2d5e6c9bb508caceec8d34ca49980
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/dongzi121/hw5
[INFO] finished tweaking git repo https://github.com/dongzi121/hw5
[INFO] tweaked toml for git repo https://github.com/dongzi121/hw5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dongzi121/hw5 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" "+13cae6066db2d5e6c9bb508caceec8d34ca49980" "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.