[INFO] cloning repository https://github.com/francoisperron/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/francoisperron/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancoisperron%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancoisperron%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 147cfb4d77fbe9279540000c28ab9564cb65ab20
[INFO] checking francoisperron/learning-rust against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-150727
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancoisperron%2Flearning-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/francoisperron/learning-rust
[INFO] finished tweaking git repo https://github.com/francoisperron/learning-rust
[INFO] tweaked toml for git repo https://github.com/francoisperron/learning-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/francoisperron/learning-rust on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/francoisperron/learning-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serial_test_derive v2.0.0
[INFO] [stderr]   Downloaded serial_test v2.0.0
[INFO] [stderr]   Downloaded futures-executor v0.3.29
[INFO] [stderr]   Downloaded predicates v3.0.4
[INFO] [stderr]   Downloaded bstr v1.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15fda437a1f3ff02cdb55377b5381dc9a70a5b396f5676806e9cd6cde114335b
[INFO] running `Command { std: "docker" "start" "-a" "15fda437a1f3ff02cdb55377b5381dc9a70a5b396f5676806e9cd6cde114335b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15fda437a1f3ff02cdb55377b5381dc9a70a5b396f5676806e9cd6cde114335b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15fda437a1f3ff02cdb55377b5381dc9a70a5b396f5676806e9cd6cde114335b", kill_on_drop: false }`
[INFO] [stdout] 15fda437a1f3ff02cdb55377b5381dc9a70a5b396f5676806e9cd6cde114335b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1da3838d66f60684b7d753b16f9105454dd45eb7d1b3b4a63535dea0ece016c
[INFO] running `Command { std: "docker" "start" "-a" "b1da3838d66f60684b7d753b16f9105454dd45eb7d1b3b4a63535dea0ece016c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking _12_minigrep v0.1.0 (/opt/rustwide/workdir/src/book/_12_minigrep)
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]     Checking _20_web_server v0.1.0 (/opt/rustwide/workdir/src/book/_20_web_server)
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking _19_hello_macro v0.1.0 (/opt/rustwide/workdir/src/book/_19_hello_macro)
[INFO] [stderr]     Checking proc-macro2 v1.0.69
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]    Compiling _19_hello_macro_derive v0.1.0 (/opt/rustwide/workdir/src/book/_19_hello_macro/_19_hello_macro_derive)
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]    Compiling serial_test_derive v2.0.0
[INFO] [stderr]     Checking serial_test v2.0.0
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking bstr v1.7.0
[INFO] [stderr]     Checking predicates v3.0.4
[INFO] [stderr]     Checking assert_cmd v2.0.12
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.38s
[INFO] running `Command { std: "docker" "inspect" "b1da3838d66f60684b7d753b16f9105454dd45eb7d1b3b4a63535dea0ece016c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1da3838d66f60684b7d753b16f9105454dd45eb7d1b3b4a63535dea0ece016c", kill_on_drop: false }`
[INFO] [stdout] b1da3838d66f60684b7d753b16f9105454dd45eb7d1b3b4a63535dea0ece016c