[INFO] cloning repository https://github.com/jtempest/rust_book_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtempest/rust_book_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtempest%2Frust_book_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtempest%2Frust_book_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23b10de80673adaee05523125cf3695738c31e09
[INFO] testing jtempest/rust_book_exercises against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtempest%2Frust_book_exercises" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtempest/rust_book_exercises on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jtempest/rust_book_exercises
[INFO] finished tweaking git repo https://github.com/jtempest/rust_book_exercises
[INFO] tweaked toml for git repo https://github.com/jtempest/rust_book_exercises written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jtempest/rust_book_exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded once_cell v1.3.1
[INFO] [stderr]   Downloaded num-bigint v0.2.6
[INFO] [stderr]   Downloaded num-complex v0.2.4
[INFO] [stderr]   Downloaded num v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3df9338b15d2d426efa992913d8a804401b2a9e2e11339165045e7fbc44877c
[INFO] running `Command { std: "docker" "start" "-a" "f3df9338b15d2d426efa992913d8a804401b2a9e2e11339165045e7fbc44877c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3df9338b15d2d426efa992913d8a804401b2a9e2e11339165045e7fbc44877c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3df9338b15d2d426efa992913d8a804401b2a9e2e11339165045e7fbc44877c", kill_on_drop: false }`
[INFO] [stdout] f3df9338b15d2d426efa992913d8a804401b2a9e2e11339165045e7fbc44877c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edc1a25af600672374aeaee9beb12c84e5fcdc41055f0e85c322222e017fc1f5
[INFO] running `Command { std: "docker" "start" "-a" "edc1a25af600672374aeaee9beb12c84e5fcdc41055f0e85c322222e017fc1f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling webserver v0.1.0 (/opt/rustwide/workdir/webserver)
[INFO] [stderr]    Compiling two_threads v0.1.0 (/opt/rustwide/workdir/threads)
[INFO] [stderr]    Compiling twelve_days v0.1.0 (/opt/rustwide/workdir/twelve_days)
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling pig_latin v0.1.0 (/opt/rustwide/workdir/pig_latin)
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling guessing v0.1.0 (/opt/rustwide/workdir/guessing)
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling averages v0.1.0 (/opt/rustwide/workdir/averages)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.87s
[INFO] running `Command { std: "docker" "inspect" "edc1a25af600672374aeaee9beb12c84e5fcdc41055f0e85c322222e017fc1f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edc1a25af600672374aeaee9beb12c84e5fcdc41055f0e85c322222e017fc1f5", kill_on_drop: false }`
[INFO] [stdout] edc1a25af600672374aeaee9beb12c84e5fcdc41055f0e85c322222e017fc1f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 033058f6d6f041e94bfc7dc6fe10013f5eeb4b7983c9a7c1d5f1fabe22a26af7
[INFO] running `Command { std: "docker" "start" "-a" "033058f6d6f041e94bfc7dc6fe10013f5eeb4b7983c9a7c1d5f1fabe22a26af7", kill_on_drop: false }`
[INFO] [stderr]    Compiling webserver v0.1.0 (/opt/rustwide/workdir/webserver)
[INFO] [stderr]    Compiling twelve_days v0.1.0 (/opt/rustwide/workdir/twelve_days)
[INFO] [stderr]    Compiling two_threads v0.1.0 (/opt/rustwide/workdir/threads)
[INFO] [stderr]    Compiling pig_latin v0.1.0 (/opt/rustwide/workdir/pig_latin)
[INFO] [stderr]    Compiling guessing v0.1.0 (/opt/rustwide/workdir/guessing)
[INFO] [stderr]    Compiling averages v0.1.0 (/opt/rustwide/workdir/averages)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "033058f6d6f041e94bfc7dc6fe10013f5eeb4b7983c9a7c1d5f1fabe22a26af7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "033058f6d6f041e94bfc7dc6fe10013f5eeb4b7983c9a7c1d5f1fabe22a26af7", kill_on_drop: false }`
[INFO] [stdout] 033058f6d6f041e94bfc7dc6fe10013f5eeb4b7983c9a7c1d5f1fabe22a26af7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1c424fd2822293075223d56f8a3bf3e686c587879e4f0377e701402f98d1ef34
[INFO] running `Command { std: "docker" "start" "-a" "1c424fd2822293075223d56f8a3bf3e686c587879e4f0377e701402f98d1ef34", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/averages-ca7a0128a6bb7ee7)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_mean ... ok
[INFO] [stdout] test test_median ... ok
[INFO] [stdout] test test_mode ... ok
[INFO] [stdout] test test_parity_cmp ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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/guessing-61fb28c48b305043)
[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/pig_latin-2fa0e5ee1899d11c)
[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/twelve_days-414660f52896ac3c)
[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/two_threads-b12ecbb549ad85d9)
[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/webserver-c7d55be8d4b133c7)
[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/main-9ed2e3722ecfaf68)
[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 webserver
[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" "1c424fd2822293075223d56f8a3bf3e686c587879e4f0377e701402f98d1ef34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c424fd2822293075223d56f8a3bf3e686c587879e4f0377e701402f98d1ef34", kill_on_drop: false }`
[INFO] [stdout] 1c424fd2822293075223d56f8a3bf3e686c587879e4f0377e701402f98d1ef34