[INFO] fetching crate isildur 0.2.0...
[INFO] testing isildur-0.2.0 against try#613d1972a772987ed4ee06faccbab0e2fc839871+rustflags=-Copt-level=3 for pr-107051
[INFO] extracting crate isildur 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate isildur 0.2.0 on toolchain 613d1972a772987ed4ee06faccbab0e2fc839871
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate isildur 0.2.0
[INFO] finished tweaking crates.io crate isildur 0.2.0
[INFO] tweaked toml for crates.io crate isildur 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e2077afad7a51fd917567efec68195393fcb3f858457d13c2cac615c2ab950f
[INFO] running `Command { std: "docker" "start" "-a" "2e2077afad7a51fd917567efec68195393fcb3f858457d13c2cac615c2ab950f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e2077afad7a51fd917567efec68195393fcb3f858457d13c2cac615c2ab950f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e2077afad7a51fd917567efec68195393fcb3f858457d13c2cac615c2ab950f", kill_on_drop: false }`
[INFO] [stdout] 2e2077afad7a51fd917567efec68195393fcb3f858457d13c2cac615c2ab950f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8970ecb0e86ff87c073f567703548c9281c888588489a436916e4711351c1ed1
[INFO] running `Command { std: "docker" "start" "-a" "8970ecb0e86ff87c073f567703548c9281c888588489a436916e4711351c1ed1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.78
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[INFO] [stderr]    Compiling git2 v0.7.5
[INFO] [stderr]    Compiling crates-index v0.12.1
[INFO] [stderr]    Compiling isildur v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `io` is imported redundantly
[INFO] [stdout]   --> src/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::{self, Write};
[INFO] [stdout]    |               ---- the item `io` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 82 |     use std::io;
[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 [optimized + debuginfo] target(s) in 5m 06s
[INFO] running `Command { std: "docker" "inspect" "8970ecb0e86ff87c073f567703548c9281c888588489a436916e4711351c1ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8970ecb0e86ff87c073f567703548c9281c888588489a436916e4711351c1ed1", kill_on_drop: false }`
[INFO] [stdout] 8970ecb0e86ff87c073f567703548c9281c888588489a436916e4711351c1ed1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 497993c31c153f605433822006228334fbc090c831c04f5396d71b4ef169b9bd
[INFO] running `Command { std: "docker" "start" "-a" "497993c31c153f605433822006228334fbc090c831c04f5396d71b4ef169b9bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling isildur v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `io` is imported redundantly
[INFO] [stdout]   --> src/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::{self, Write};
[INFO] [stdout]    |               ---- the item `io` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 82 |     use std::io;
[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 [optimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "497993c31c153f605433822006228334fbc090c831c04f5396d71b4ef169b9bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "497993c31c153f605433822006228334fbc090c831c04f5396d71b4ef169b9bd", kill_on_drop: false }`
[INFO] [stdout] 497993c31c153f605433822006228334fbc090c831c04f5396d71b4ef169b9bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ac4599683adcb66569352f26eb5503497b62675f392c5cd0237685cd1b7c790d
[INFO] running `Command { std: "docker" "start" "-a" "ac4599683adcb66569352f26eb5503497b62675f392c5cd0237685cd1b7c790d", kill_on_drop: false }`
[INFO] [stderr] warning: the item `io` is imported redundantly
[INFO] [stderr]   --> src/main.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::io::{self, Write};
[INFO] [stderr]    |               ---- the item `io` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 82 |     use std::io;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `isildur` (bin "isildur" test) generated 1 warning
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/isildur-b165ef3bd5a93aa9)
[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" "ac4599683adcb66569352f26eb5503497b62675f392c5cd0237685cd1b7c790d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4599683adcb66569352f26eb5503497b62675f392c5cd0237685cd1b7c790d", kill_on_drop: false }`
[INFO] [stdout] ac4599683adcb66569352f26eb5503497b62675f392c5cd0237685cd1b7c790d