[INFO] fetching crate algs 0.1.0...
[INFO] testing algs-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate algs 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate algs 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate algs 0.1.0
[INFO] finished tweaking crates.io crate algs 0.1.0
[INFO] tweaked toml for crates.io crate algs 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f123f9ac8126b6a3182b1bf79f8df28c57dd7e0d95fa4fba4ae92544665aab7b
[INFO] running `Command { std: "docker" "start" "-a" "f123f9ac8126b6a3182b1bf79f8df28c57dd7e0d95fa4fba4ae92544665aab7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f123f9ac8126b6a3182b1bf79f8df28c57dd7e0d95fa4fba4ae92544665aab7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f123f9ac8126b6a3182b1bf79f8df28c57dd7e0d95fa4fba4ae92544665aab7b", kill_on_drop: false }`
[INFO] [stdout] f123f9ac8126b6a3182b1bf79f8df28c57dd7e0d95fa4fba4ae92544665aab7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ff3d50770d4d394bf623fb01f756c88b8746c65a86f2d2fa3d1846f721f9e81
[INFO] running `Command { std: "docker" "start" "-a" "7ff3d50770d4d394bf623fb01f756c88b8746c65a86f2d2fa3d1846f721f9e81", kill_on_drop: false }`
[INFO] [stderr]    Compiling algs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/string/string_to_integer.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn string_to_integer(s: String) -> i32 {
[INFO] [stdout]   |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` 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 0.32s
[INFO] running `Command { std: "docker" "inspect" "7ff3d50770d4d394bf623fb01f756c88b8746c65a86f2d2fa3d1846f721f9e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ff3d50770d4d394bf623fb01f756c88b8746c65a86f2d2fa3d1846f721f9e81", kill_on_drop: false }`
[INFO] [stdout] 7ff3d50770d4d394bf623fb01f756c88b8746c65a86f2d2fa3d1846f721f9e81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0197b10fc2a66cf3c7bb5612d1595be9c616d06ab330bcc9e48baae59f3af8d
[INFO] running `Command { std: "docker" "start" "-a" "a0197b10fc2a66cf3c7bb5612d1595be9c616d06ab330bcc9e48baae59f3af8d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/string/string_to_integer.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn string_to_integer(s: String) -> i32 {
[INFO] [stdout]   |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling algs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/string/string_to_integer.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn string_to_integer(s: String) -> i32 {
[INFO] [stdout]   |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` 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 0.67s
[INFO] running `Command { std: "docker" "inspect" "a0197b10fc2a66cf3c7bb5612d1595be9c616d06ab330bcc9e48baae59f3af8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0197b10fc2a66cf3c7bb5612d1595be9c616d06ab330bcc9e48baae59f3af8d", kill_on_drop: false }`
[INFO] [stdout] a0197b10fc2a66cf3c7bb5612d1595be9c616d06ab330bcc9e48baae59f3af8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 38cd1ed6d11f737b8036492b2adb203dd2331d588b26039828e8368e438cd9d9
[INFO] running `Command { std: "docker" "start" "-a" "38cd1ed6d11f737b8036492b2adb203dd2331d588b26039828e8368e438cd9d9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/string/string_to_integer.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn string_to_integer(s: String) -> i32 {
[INFO] [stderr]   |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `algs` (lib) generated 1 warning
[INFO] [stderr] warning: `algs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/algs-9faaef4fe62e8cd2)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test grid::pickup_two_collectors::test_grid ... ok
[INFO] [stdout] test int::reverse::reverse_neg_works ... ok
[INFO] [stdout] test int::reverse::reverse_works ... ok
[INFO] [stdout] test int::reverse::zero_from_out_of_bounds_add ... ok
[INFO] [stdout] test int::reverse::zero_from_out_of_bounds_mult ... ok
[INFO] [stdout] test string::longest_substring::long_substring ... ok
[INFO] [stdout] test string::longest_substring::no_chars ... ok
[INFO] [stdout] test linked_list::add::add_simple ... ok
[INFO] [stdout] test string::longest_substring::one_char ... ok
[INFO] [stdout] test string::string_to_integer::returns_int ... ok
[INFO] [stdout] test string::longest_substring::repeating_chars ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests algs
[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" "38cd1ed6d11f737b8036492b2adb203dd2331d588b26039828e8368e438cd9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38cd1ed6d11f737b8036492b2adb203dd2331d588b26039828e8368e438cd9d9", kill_on_drop: false }`
[INFO] [stdout] 38cd1ed6d11f737b8036492b2adb203dd2331d588b26039828e8368e438cd9d9