[INFO] fetching crate cargo-install-latest 0.1.0...
[INFO] testing cargo-install-latest-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate cargo-install-latest 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cargo-install-latest 0.1.0 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 crates.io crate cargo-install-latest 0.1.0
[INFO] finished tweaking crates.io crate cargo-install-latest 0.1.0
[INFO] tweaked toml for crates.io crate cargo-install-latest 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] abb25e31015f561c5d22f64a88d62819e5c3ba250594e6abf9d3f125857a5296
[INFO] running `Command { std: "docker" "start" "-a" "abb25e31015f561c5d22f64a88d62819e5c3ba250594e6abf9d3f125857a5296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abb25e31015f561c5d22f64a88d62819e5c3ba250594e6abf9d3f125857a5296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abb25e31015f561c5d22f64a88d62819e5c3ba250594e6abf9d3f125857a5296", kill_on_drop: false }`
[INFO] [stdout] abb25e31015f561c5d22f64a88d62819e5c3ba250594e6abf9d3f125857a5296
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d7ac61e91d78983bb4322bf8a3d4ec8575e3ac1565e47efaf5b04d84b020df17
[INFO] running `Command { std: "docker" "start" "-a" "d7ac61e91d78983bb4322bf8a3d4ec8575e3ac1565e47efaf5b04d84b020df17", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling cargo-install-latest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `fs` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |     use std::fs;
[INFO] [stdout]    |         ------- the item `fs` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 97 |         use std::fs;
[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 11.47s
[INFO] running `Command { std: "docker" "inspect" "d7ac61e91d78983bb4322bf8a3d4ec8575e3ac1565e47efaf5b04d84b020df17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ac61e91d78983bb4322bf8a3d4ec8575e3ac1565e47efaf5b04d84b020df17", kill_on_drop: false }`
[INFO] [stdout] d7ac61e91d78983bb4322bf8a3d4ec8575e3ac1565e47efaf5b04d84b020df17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ab194f6adc56a564fa19e5640ff00d898e683bdf5b42f84fbfd7412c3658616c
[INFO] running `Command { std: "docker" "start" "-a" "ab194f6adc56a564fa19e5640ff00d898e683bdf5b42f84fbfd7412c3658616c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-install-latest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `fs` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |     use std::fs;
[INFO] [stdout]    |         ------- the item `fs` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 97 |         use std::fs;
[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: the item `fs` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |     use std::fs;
[INFO] [stdout]    |         ------- the item `fs` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 97 |         use std::fs;
[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 1.13s
[INFO] running `Command { std: "docker" "inspect" "ab194f6adc56a564fa19e5640ff00d898e683bdf5b42f84fbfd7412c3658616c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab194f6adc56a564fa19e5640ff00d898e683bdf5b42f84fbfd7412c3658616c", kill_on_drop: false }`
[INFO] [stdout] ab194f6adc56a564fa19e5640ff00d898e683bdf5b42f84fbfd7412c3658616c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] f5affe379b8dea86de63812da0033db4e493be79aab7a03c52aeb67dbfd6a3e9
[INFO] running `Command { std: "docker" "start" "-a" "f5affe379b8dea86de63812da0033db4e493be79aab7a03c52aeb67dbfd6a3e9", kill_on_drop: false }`
[INFO] [stderr] warning: the item `fs` is imported redundantly
[INFO] [stderr]   --> src/lib.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |     use std::fs;
[INFO] [stderr]    |         ------- the item `fs` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 97 |         use std::fs;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cargo-install-latest` (lib) generated 1 warning
[INFO] [stderr] warning: `cargo-install-latest` (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/cargo_install_latest-8ea1cecad20e8a6c)
[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/cargo_install_latest-192f3813bd86c633)
[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]    Doc-tests cargo-install-latest
[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" "f5affe379b8dea86de63812da0033db4e493be79aab7a03c52aeb67dbfd6a3e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5affe379b8dea86de63812da0033db4e493be79aab7a03c52aeb67dbfd6a3e9", kill_on_drop: false }`
[INFO] [stdout] f5affe379b8dea86de63812da0033db4e493be79aab7a03c52aeb67dbfd6a3e9