[INFO] cloning repository https://github.com/DaCaseo/mcwr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DaCaseo/mcwr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaCaseo%2Fmcwr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaCaseo%2Fmcwr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f7fbe762113257180469cd85cfba0568e0b3796
[INFO] testing DaCaseo/mcwr against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaCaseo%2Fmcwr" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DaCaseo/mcwr on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DaCaseo/mcwr
[INFO] finished tweaking git repo https://github.com/DaCaseo/mcwr
[INFO] tweaked toml for git repo https://github.com/DaCaseo/mcwr written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/DaCaseo/mcwr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded duct v0.13.4
[INFO] [stderr]   Downloaded shared_child v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7edeb30dbad5a7569161ff49ca32219d64ea009e041efb17cbed0896941504e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c7edeb30dbad5a7569161ff49ca32219d64ea009e041efb17cbed0896941504e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7edeb30dbad5a7569161ff49ca32219d64ea009e041efb17cbed0896941504e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7edeb30dbad5a7569161ff49ca32219d64ea009e041efb17cbed0896941504e", kill_on_drop: false }`
[INFO] [stdout] c7edeb30dbad5a7569161ff49ca32219d64ea009e041efb17cbed0896941504e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16d29885ae60ab76254b294d750aeef100741d11620ce9c2e8acd977fdd1eb11
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "16d29885ae60ab76254b294d750aeef100741d11620ce9c2e8acd977fdd1eb11", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling os_pipe v0.9.2
[INFO] [stderr]    Compiling shared_child v0.3.4
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling duct v0.13.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]    Compiling structopt v0.3.15
[INFO] [stderr]    Compiling mcwr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Write`, `prelude::*`
[INFO] [stdout]   --> src/actions.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     use std::io::{prelude::*, Write}; // find a way to keep track of handles
[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 44.95s
[INFO] running `Command { std: "docker" "inspect" "16d29885ae60ab76254b294d750aeef100741d11620ce9c2e8acd977fdd1eb11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16d29885ae60ab76254b294d750aeef100741d11620ce9c2e8acd977fdd1eb11", kill_on_drop: false }`
[INFO] [stdout] 16d29885ae60ab76254b294d750aeef100741d11620ce9c2e8acd977fdd1eb11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b4baecef62ed0efaf62db8f589020a0a2088d8328b07d136eacef082d8339b5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3b4baecef62ed0efaf62db8f589020a0a2088d8328b07d136eacef082d8339b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling mcwr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Write`, `prelude::*`
[INFO] [stdout]   --> src/actions.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     use std::io::{prelude::*, Write}; // find a way to keep track of handles
[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] [stdout] warning: unused imports: `Write`, `prelude::*`
[INFO] [stdout]   --> src/actions.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     use std::io::{prelude::*, Write}; // find a way to keep track of handles
[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 1.66s
[INFO] running `Command { std: "docker" "inspect" "3b4baecef62ed0efaf62db8f589020a0a2088d8328b07d136eacef082d8339b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b4baecef62ed0efaf62db8f589020a0a2088d8328b07d136eacef082d8339b5", kill_on_drop: false }`
[INFO] [stdout] 3b4baecef62ed0efaf62db8f589020a0a2088d8328b07d136eacef082d8339b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 94a922ce028f96ff1d588d5dec9215be5d095e269ed5390ca3617b858725dadf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "94a922ce028f96ff1d588d5dec9215be5d095e269ed5390ca3617b858725dadf", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Write`, `prelude::*`
[INFO] [stderr]   --> src/actions.rs:16:16
[INFO] [stderr]    |
[INFO] [stderr] 16 |     use std::io::{prelude::*, Write}; // find a way to keep track of handles
[INFO] [stderr]    |                   ^^^^^^^^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mcwr` (lib) generated 1 warning
[INFO] [stderr] warning: `mcwr` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mcwr-c60053459ec6a3f8)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mcwr-60507551ba9edf5c)
[INFO] [stderr]    Doc-tests mcwr
[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] [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" "94a922ce028f96ff1d588d5dec9215be5d095e269ed5390ca3617b858725dadf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94a922ce028f96ff1d588d5dec9215be5d095e269ed5390ca3617b858725dadf", kill_on_drop: false }`
[INFO] [stdout] 94a922ce028f96ff1d588d5dec9215be5d095e269ed5390ca3617b858725dadf