Dec 06 07:19:01.275 INFO testing alexcrichton/l4c against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 07:19:01.275 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 07:19:01.892 INFO [stdout] b253316b63b39875707cffc893dc14eb1317972c67713edf4cc78c7ef62af6da
Dec 06 07:19:01.900 INFO running `"docker" "start" "-a" "b253316b63b39875707cffc893dc14eb1317972c67713edf4cc78c7ef62af6da"`
Dec 06 07:19:03.076 INFO [stderr] usermod: no changes
Dec 06 07:19:03.160 INFO [stderr]    Compiling log v0.4.5
Dec 06 07:19:03.988 INFO [stderr]    Compiling env_logger v0.5.13
Dec 06 07:19:05.550 INFO [stderr]    Compiling l4c v0.0.0 (/source)
Dec 06 07:19:07.984 INFO [stderr] warning: unused import: `Display`
Dec 06 07:19:07.984 INFO [stderr]  --> src/front/pp.rs:1:16
Dec 06 07:19:07.984 INFO [stderr]   |
Dec 06 07:19:07.984 INFO [stderr] 1 | use std::fmt::{Display, Write};
Dec 06 07:19:07.984 INFO [stderr]   |                ^^^^^^^
Dec 06 07:19:07.984 INFO [stderr]   |
Dec 06 07:19:07.984 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 07:19:07.984 INFO [stderr] 
Dec 06 07:19:23.222 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.13s
Dec 06 07:19:23.230 INFO [stderr] su: No module specific data is present
Dec 06 07:19:23.880 INFO running `"docker" "inspect" "b253316b63b39875707cffc893dc14eb1317972c67713edf4cc78c7ef62af6da"`
Dec 06 07:19:24.084 INFO running `"docker" "rm" "-f" "b253316b63b39875707cffc893dc14eb1317972c67713edf4cc78c7ef62af6da"`
Dec 06 07:19:24.346 INFO [stdout] b253316b63b39875707cffc893dc14eb1317972c67713edf4cc78c7ef62af6da
Dec 06 07:19:24.356 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 07:19:24.717 INFO [stdout] 93d2130ac1f63df3b69bde7578063a87ccd0ae344652393776a0a19c86bbe88a
Dec 06 07:19:24.719 INFO running `"docker" "start" "-a" "93d2130ac1f63df3b69bde7578063a87ccd0ae344652393776a0a19c86bbe88a"`
Dec 06 07:19:26.731 INFO [stderr] usermod: no changes
Dec 06 07:19:26.892 INFO [stderr]    Compiling l4c v0.0.0 (/source)
Dec 06 07:19:29.440 INFO [stderr] warning: unused import: `Display`
Dec 06 07:19:29.440 INFO [stderr]  --> src/front/pp.rs:1:16
Dec 06 07:19:29.440 INFO [stderr]   |
Dec 06 07:19:29.440 INFO [stderr] 1 | use std::fmt::{Display, Write};
Dec 06 07:19:29.440 INFO [stderr]   |                ^^^^^^^
Dec 06 07:19:29.440 INFO [stderr]   |
Dec 06 07:19:29.440 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 07:19:29.440 INFO [stderr] 
Dec 06 07:19:32.989 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.24s
Dec 06 07:19:32.994 INFO [stderr] su: No module specific data is present
Dec 06 07:19:34.310 INFO running `"docker" "inspect" "93d2130ac1f63df3b69bde7578063a87ccd0ae344652393776a0a19c86bbe88a"`
Dec 06 07:19:34.610 INFO running `"docker" "rm" "-f" "93d2130ac1f63df3b69bde7578063a87ccd0ae344652393776a0a19c86bbe88a"`
Dec 06 07:19:34.988 INFO [stdout] 93d2130ac1f63df3b69bde7578063a87ccd0ae344652393776a0a19c86bbe88a
Dec 06 07:19:34.992 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 07:19:35.432 INFO [stdout] 7ec3319321562769edef02cf5597241dd8916c305f6348c3f3ad5340dbee329f
Dec 06 07:19:35.434 INFO running `"docker" "start" "-a" "7ec3319321562769edef02cf5597241dd8916c305f6348c3f3ad5340dbee329f"`
Dec 06 07:19:37.193 INFO [stderr] usermod: no changes
Dec 06 07:19:37.293 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
Dec 06 07:19:37.294 INFO [stderr]      Running /target/debug/deps/l4c-a4d385a6b213974e
Dec 06 07:19:37.297 INFO [stdout] 
Dec 06 07:19:37.297 INFO [stdout] running 9 tests
Dec 06 07:19:37.300 INFO [stdout] test middle::opt::arith::test_log2 ... ok
Dec 06 07:19:37.313 INFO [stdout] test middle::opt::arith::test_pow2 ... ok
Dec 06 07:19:37.313 INFO [stdout] test back::alloc::tests::test_resolve ... ok
Dec 06 07:19:37.313 INFO [stdout] test back::spill::tests::test_sort_works1 ... ok
Dec 06 07:19:37.313 INFO [stdout] test utils::graph::test_basic ... ok
Dec 06 07:19:37.313 INFO [stdout] test back::spill::tests::test_sort_works2 ... ok
Dec 06 07:19:37.323 INFO [stdout] test back::arch::test_stack_alignment ... ok
Dec 06 07:19:37.385 INFO [stdout] test utils::graph::test_random_id_fail ... ok
Dec 06 07:19:37.388 INFO [stdout] test utils::graph::test_same_id_fail ... ok
Dec 06 07:19:37.388 INFO [stdout] 
Dec 06 07:19:37.388 INFO [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 07:19:37.388 INFO [stdout] 
Dec 06 07:19:37.391 INFO [stderr] su: No module specific data is present
Dec 06 07:19:38.147 INFO running `"docker" "inspect" "7ec3319321562769edef02cf5597241dd8916c305f6348c3f3ad5340dbee329f"`
Dec 06 07:19:38.498 INFO running `"docker" "rm" "-f" "7ec3319321562769edef02cf5597241dd8916c305f6348c3f3ad5340dbee329f"`
Dec 06 07:19:38.785 INFO [stdout] 7ec3319321562769edef02cf5597241dd8916c305f6348c3f3ad5340dbee329f