[INFO] cloning repository https://github.com/jiegec/classroom-helper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jiegec/classroom-helper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiegec%2Fclassroom-helper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiegec%2Fclassroom-helper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b235b37d3c59cb62283a3c5b1891657490e254d7
[INFO] testing jiegec/classroom-helper against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiegec%2Fclassroom-helper" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jiegec/classroom-helper on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jiegec/classroom-helper
[INFO] finished tweaking git repo https://github.com/jiegec/classroom-helper
[INFO] tweaked toml for git repo https://github.com/jiegec/classroom-helper written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/jiegec/classroom-helper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-hjson v0.8.2
[INFO] [stderr]   Downloaded tui v0.10.0
[INFO] [stderr]   Downloaded bstr v0.2.1
[INFO] [stderr]   Downloaded regex-automata v0.1.7
[INFO] [stderr]   Downloaded config v0.9.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2420157cd6d4ddcb3ba4597d2399c204c26937246a23ae21a3710e6901955c73
[INFO] running `Command { std: "docker" "start" "-a" "2420157cd6d4ddcb3ba4597d2399c204c26937246a23ae21a3710e6901955c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2420157cd6d4ddcb3ba4597d2399c204c26937246a23ae21a3710e6901955c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2420157cd6d4ddcb3ba4597d2399c204c26937246a23ae21a3710e6901955c73", kill_on_drop: false }`
[INFO] [stdout] 2420157cd6d4ddcb3ba4597d2399c204c26937246a23ae21a3710e6901955c73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54f80aced98bff4e68aa1b147af799a85d0b2cb63ff9a258d624e182d565a2a3
[INFO] running `Command { std: "docker" "start" "-a" "54f80aced98bff4e68aa1b147af799a85d0b2cb63ff9a258d624e182d565a2a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.7
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling regex-automata v0.1.7
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling termion v1.5.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling tui v0.10.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling serde-hjson v0.8.2
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling bstr v0.2.1
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling config v0.9.3
[INFO] [stderr]    Compiling classroom-helper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.81s
[INFO] running `Command { std: "docker" "inspect" "54f80aced98bff4e68aa1b147af799a85d0b2cb63ff9a258d624e182d565a2a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f80aced98bff4e68aa1b147af799a85d0b2cb63ff9a258d624e182d565a2a3", kill_on_drop: false }`
[INFO] [stdout] 54f80aced98bff4e68aa1b147af799a85d0b2cb63ff9a258d624e182d565a2a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae38a146f0288d3c232a8675779dbbc4c564c3156241d9be4d57e2bc2f12ddee
[INFO] running `Command { std: "docker" "start" "-a" "ae38a146f0288d3c232a8675779dbbc4c564c3156241d9be4d57e2bc2f12ddee", kill_on_drop: false }`
[INFO] [stderr]    Compiling classroom-helper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "ae38a146f0288d3c232a8675779dbbc4c564c3156241d9be4d57e2bc2f12ddee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae38a146f0288d3c232a8675779dbbc4c564c3156241d9be4d57e2bc2f12ddee", kill_on_drop: false }`
[INFO] [stdout] ae38a146f0288d3c232a8675779dbbc4c564c3156241d9be4d57e2bc2f12ddee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f55fe06088300c2c906ed311dd36763f70768fa2ac036d8c562a2beffce78739
[INFO] running `Command { std: "docker" "start" "-a" "f55fe06088300c2c906ed311dd36763f70768fa2ac036d8c562a2beffce78739", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/classroom_helper-28d15a89f057fd8c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f55fe06088300c2c906ed311dd36763f70768fa2ac036d8c562a2beffce78739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f55fe06088300c2c906ed311dd36763f70768fa2ac036d8c562a2beffce78739", kill_on_drop: false }`
[INFO] [stdout] f55fe06088300c2c906ed311dd36763f70768fa2ac036d8c562a2beffce78739