[INFO] crate symmetric-interaction-calculus 0.1.8 is already in cache
[INFO] extracting crate symmetric-interaction-calculus 0.1.8 into work/ex/beta-1.38-1/sources/1.37.0/reg/symmetric-interaction-calculus/0.1.8
[INFO] extracting crate symmetric-interaction-calculus 0.1.8 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/symmetric-interaction-calculus/0.1.8
[INFO] validating manifest of symmetric-interaction-calculus-0.1.8 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of symmetric-interaction-calculus-0.1.8 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing symmetric-interaction-calculus-0.1.8
[INFO] finished frobbing symmetric-interaction-calculus-0.1.8
[INFO] frobbed toml for symmetric-interaction-calculus-0.1.8 written to work/ex/beta-1.38-1/sources/1.37.0/reg/symmetric-interaction-calculus/0.1.8/Cargo.toml
[INFO] started frobbing symmetric-interaction-calculus-0.1.8
[INFO] finished frobbing symmetric-interaction-calculus-0.1.8
[INFO] frobbed toml for symmetric-interaction-calculus-0.1.8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/symmetric-interaction-calculus/0.1.8/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing symmetric-interaction-calculus-0.1.8 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/symmetric-interaction-calculus/0.1.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] ce51705410d3f11a01b4d47f5c8cacf3a1d9158c3f916353e66019d1ec270261
[INFO] running `"docker" "start" "-a" "ce51705410d3f11a01b4d47f5c8cacf3a1d9158c3f916353e66019d1ec270261"`
[INFO] [stderr]    Compiling symmetric-interaction-calculus v0.1.8 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/term.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |                                 let mut name = nam.clone().to_vec();
[INFO] [stderr]     |                                     ----^^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/term.rs:452:25
[INFO] [stderr]     |
[INFO] [stderr] 452 |                     let mut lam = Lam{nam: nam, bod: Box::new(bod)};
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/term.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |                                 let mut name = nam.clone().to_vec();
[INFO] [stderr]     |                                     ----^^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/term.rs:452:25
[INFO] [stderr]     |
[INFO] [stderr] 452 |                     let mut lam = Lam{nam: nam, bod: Box::new(bod)};
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.06s
[INFO] running `"docker" "inspect" "ce51705410d3f11a01b4d47f5c8cacf3a1d9158c3f916353e66019d1ec270261"`
[INFO] running `"docker" "rm" "-f" "ce51705410d3f11a01b4d47f5c8cacf3a1d9158c3f916353e66019d1ec270261"`
[INFO] [stdout] ce51705410d3f11a01b4d47f5c8cacf3a1d9158c3f916353e66019d1ec270261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/symmetric-interaction-calculus/0.1.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9b91b1b78623f2f8789af18265cb6cc71c404081504eb9a1cfff38cab12f1b97
[INFO] running `"docker" "start" "-a" "9b91b1b78623f2f8789af18265cb6cc71c404081504eb9a1cfff38cab12f1b97"`
[INFO] [stderr]    Compiling symmetric-interaction-calculus v0.1.8 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/term.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |                                 let mut name = nam.clone().to_vec();
[INFO] [stderr]     |                                     ----^^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/term.rs:452:25
[INFO] [stderr]     |
[INFO] [stderr] 452 |                     let mut lam = Lam{nam: nam, bod: Box::new(bod)};
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/term.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |                                 let mut name = nam.clone().to_vec();
[INFO] [stderr]     |                                     ----^^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/term.rs:452:25
[INFO] [stderr]     |
[INFO] [stderr] 452 |                     let mut lam = Lam{nam: nam, bod: Box::new(bod)};
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "9b91b1b78623f2f8789af18265cb6cc71c404081504eb9a1cfff38cab12f1b97"`
[INFO] running `"docker" "rm" "-f" "9b91b1b78623f2f8789af18265cb6cc71c404081504eb9a1cfff38cab12f1b97"`
[INFO] [stdout] 9b91b1b78623f2f8789af18265cb6cc71c404081504eb9a1cfff38cab12f1b97
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/symmetric-interaction-calculus/0.1.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] d82c5759dd28644b7bddba131e87ddf2b736427a248a45a65f4be697ed08eabc
[INFO] running `"docker" "start" "-a" "d82c5759dd28644b7bddba131e87ddf2b736427a248a45a65f4be697ed08eabc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sic-cb66fb20174f8f5c
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sic-bb4b866431516983
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sic
[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
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d82c5759dd28644b7bddba131e87ddf2b736427a248a45a65f4be697ed08eabc"`
[INFO] running `"docker" "rm" "-f" "d82c5759dd28644b7bddba131e87ddf2b736427a248a45a65f4be697ed08eabc"`
[INFO] [stdout] d82c5759dd28644b7bddba131e87ddf2b736427a248a45a65f4be697ed08eabc