[INFO] cloning repository https://github.com/VictorKoenders/rustschool_2_irc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VictorKoenders/rustschool_2_irc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVictorKoenders%2Frustschool_2_irc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVictorKoenders%2Frustschool_2_irc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2ab9f1ecf058a946e6a910e4b30af96f90378c3
[INFO] testing VictorKoenders/rustschool_2_irc against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVictorKoenders%2Frustschool_2_irc" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VictorKoenders/rustschool_2_irc on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VictorKoenders/rustschool_2_irc
[INFO] finished tweaking git repo https://github.com/VictorKoenders/rustschool_2_irc
[INFO] tweaked toml for git repo https://github.com/VictorKoenders/rustschool_2_irc written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/VictorKoenders/rustschool_2_irc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a4dcd3df4f11dc53cf3f57e7154f48340e5fd825aadf3e3fdc4b61e19c96f87
[INFO] running `Command { std: "docker" "start" "-a" "3a4dcd3df4f11dc53cf3f57e7154f48340e5fd825aadf3e3fdc4b61e19c96f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a4dcd3df4f11dc53cf3f57e7154f48340e5fd825aadf3e3fdc4b61e19c96f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a4dcd3df4f11dc53cf3f57e7154f48340e5fd825aadf3e3fdc4b61e19c96f87", kill_on_drop: false }`
[INFO] [stdout] 3a4dcd3df4f11dc53cf3f57e7154f48340e5fd825aadf3e3fdc4b61e19c96f87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f89b5f62c85d648277c6197288a743da0abd7711ea834d357ffbc4a723ec21d
[INFO] running `Command { std: "docker" "start" "-a" "3f89b5f62c85d648277c6197288a743da0abd7711ea834d357ffbc4a723ec21d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling cfg-if v0.1.6
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[INFO] [stderr]    Compiling unicode-xid v0.1.0
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[INFO] [stderr]    Compiling encoding_rs v0.8.14
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling adler32 v1.0.3
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[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling crossbeam-utils v0.6.3
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[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling base64 v0.10.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling tokio-timer v0.1.2
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[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]    Compiling tokio-executor v0.1.6
[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling smallvec v0.6.7
[INFO] [stderr]    Compiling rand_os v0.1.1
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling tokio-current-thread v0.1.4
[INFO] [stderr]    Compiling tokio-timer v0.2.8
[INFO] [stderr]    Compiling libflate v0.1.19
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling uuid v0.7.1
[INFO] [stderr]    Compiling mime v0.3.13
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.36
[INFO] [stderr]    Compiling tokio-io v0.1.11
[INFO] [stderr]    Compiling http v0.1.14
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-mockstream v1.1.0
[INFO] [stderr]    Compiling serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling tokio-tls v0.2.1
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling h2 v0.1.15
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.8
[INFO] [stderr]    Compiling crossbeam-channel v0.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-threadpool v0.1.10
[INFO] [stderr]    Compiling tokio-fs v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling tokio v0.1.14
[INFO] [stderr]    Compiling hyper v0.12.21
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling reqwest v0.9.8
[INFO] [stderr]    Compiling irc v0.13.6
[INFO] [stderr]    Compiling rustschool_3_irc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Config` is imported redundantly
[INFO] [stdout]    --> src/main.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 29  | use irc::client::prelude::*;
[INFO] [stdout]     |     ----------------------- the item `Config` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 178 |     use irc::client::data::config::Config;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` 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 41.03s
[INFO] running `Command { std: "docker" "inspect" "3f89b5f62c85d648277c6197288a743da0abd7711ea834d357ffbc4a723ec21d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f89b5f62c85d648277c6197288a743da0abd7711ea834d357ffbc4a723ec21d", kill_on_drop: false }`
[INFO] [stdout] 3f89b5f62c85d648277c6197288a743da0abd7711ea834d357ffbc4a723ec21d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9e5e420ccad8c4f239d5b27c5e0e5ff6bab8ed0a4bbaeb71c89e9132507cbda
[INFO] running `Command { std: "docker" "start" "-a" "a9e5e420ccad8c4f239d5b27c5e0e5ff6bab8ed0a4bbaeb71c89e9132507cbda", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustschool_3_irc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Config` is imported redundantly
[INFO] [stdout]    --> src/main.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 29  | use irc::client::prelude::*;
[INFO] [stdout]     |     ----------------------- the item `Config` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 178 |     use irc::client::data::config::Config;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` 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 0.78s
[INFO] running `Command { std: "docker" "inspect" "a9e5e420ccad8c4f239d5b27c5e0e5ff6bab8ed0a4bbaeb71c89e9132507cbda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9e5e420ccad8c4f239d5b27c5e0e5ff6bab8ed0a4bbaeb71c89e9132507cbda", kill_on_drop: false }`
[INFO] [stdout] a9e5e420ccad8c4f239d5b27c5e0e5ff6bab8ed0a4bbaeb71c89e9132507cbda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b88fba914e6244354f639e8c16245155c706d5c0fa5280586ef77899f01c1e2
[INFO] running `Command { std: "docker" "start" "-a" "3b88fba914e6244354f639e8c16245155c706d5c0fa5280586ef77899f01c1e2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: the item `Config` is imported redundantly
[INFO] [stderr]    --> src/main.rs:178:9
[INFO] [stderr]     |
[INFO] [stderr] 29  | use irc::client::prelude::*;
[INFO] [stderr]     |     ----------------------- the item `Config` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 178 |     use irc::client::data::config::Config;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rustschool_3_irc` (bin "rustschool_3_irc" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustschool_3_irc-fdcf1052f7467303)
[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" "3b88fba914e6244354f639e8c16245155c706d5c0fa5280586ef77899f01c1e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b88fba914e6244354f639e8c16245155c706d5c0fa5280586ef77899f01c1e2", kill_on_drop: false }`
[INFO] [stdout] 3b88fba914e6244354f639e8c16245155c706d5c0fa5280586ef77899f01c1e2