[INFO] fetching crate hs-rust-learn 0.1.0...
[INFO] testing hs-rust-learn-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate hs-rust-learn 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate hs-rust-learn 0.1.0
[INFO] finished tweaking crates.io crate hs-rust-learn 0.1.0
[INFO] tweaked toml for crates.io crate hs-rust-learn 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hs-rust-learn 0.1.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hs-rust-learn 0.1.0 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df8c82bab00b426debde4d39d237e3a4d6677bf4a422e6be938bd2b703f622ce
[INFO] running `Command { std: "docker" "start" "-a" "df8c82bab00b426debde4d39d237e3a4d6677bf4a422e6be938bd2b703f622ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df8c82bab00b426debde4d39d237e3a4d6677bf4a422e6be938bd2b703f622ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df8c82bab00b426debde4d39d237e3a4d6677bf4a422e6be938bd2b703f622ce", kill_on_drop: false }`
[INFO] [stdout] df8c82bab00b426debde4d39d237e3a4d6677bf4a422e6be938bd2b703f622ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82b2c5bb8cc913989bcb4f28168e7dc07de7e057efb0a631b08b693af2492dbb
[INFO] running `Command { std: "docker" "start" "-a" "82b2c5bb8cc913989bcb4f28168e7dc07de7e057efb0a631b08b693af2492dbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling hs-rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 4.29s
[INFO] running `Command { std: "docker" "inspect" "82b2c5bb8cc913989bcb4f28168e7dc07de7e057efb0a631b08b693af2492dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82b2c5bb8cc913989bcb4f28168e7dc07de7e057efb0a631b08b693af2492dbb", kill_on_drop: false }`
[INFO] [stdout] 82b2c5bb8cc913989bcb4f28168e7dc07de7e057efb0a631b08b693af2492dbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c01d9d1854ef9ce2f6b0bd5d722dac73c59d52c6912a2a62f5bc3b598318352d
[INFO] running `Command { std: "docker" "start" "-a" "c01d9d1854ef9ce2f6b0bd5d722dac73c59d52c6912a2a62f5bc3b598318352d", kill_on_drop: false }`
[INFO] [stderr]    Compiling hs-rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `grep_lib`
[INFO] [stdout]  --> tests/integration_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use grep_lib;
[INFO] [stdout]   |     ^^^^^^^^ no external crate `grep_lib`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `grep_lib`
[INFO] [stdout]  --> tests/another_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use grep_lib;
[INFO] [stdout]   |     ^^^^^^^^ no external crate `grep_lib`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hs-rust-learn` (test "integration_tests") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hs-rust-learn` (test "another_tests") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c01d9d1854ef9ce2f6b0bd5d722dac73c59d52c6912a2a62f5bc3b598318352d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c01d9d1854ef9ce2f6b0bd5d722dac73c59d52c6912a2a62f5bc3b598318352d", kill_on_drop: false }`
[INFO] [stdout] c01d9d1854ef9ce2f6b0bd5d722dac73c59d52c6912a2a62f5bc3b598318352d